Federal Voluntary Voting System Guidelines: Summary and Analysis of Issues
CRS Report for Congress
Federal Voluntary Voting System Guidelines:
Summary and Analysis of Issues
November 9, 2005
Eric A. Fischer
Senior Specialist in Science and Technology
Resources, Science, and Industry Division
Congressional Research Service ˜ The Library of Congress
Federal Voluntary Voting System Guidelines: Summary
and Analysis of Issues
The Help America Vote Act of 2002 (HAVA, P.L. 107-252) gave the federal
Election Assistance Commission (EAC) the responsibility to develop a set of
Voluntary Voting System Guidelines (VVSG) to replace the current voluntary Voting
Systems Standards (VSS). The VVSG are to provide a set of specifications and
requirements to be used in the certification of computer-assisted voting systems, both
paper-based and fully electronic. That was also the purpose of the VSS, which were
developed in response to concerns raised about voting systems in the 1970s and
1980s. Most states have adopted the VSS in whole or in part, and most are expected
to adopt the VVSG, which are scheduled to go into effect two years after approval.
The draft VVSG, a partial revision of the VSS, was released in June 2005 for a
90-day comment period. Volume I provides performance guidelines for voting
systems and is intended for a broad audience. It includes descriptions of functional
requirements and performance standards, and requirements for vendors. The most
extensive revisions are to the section on usability and accessibility and the section on
security of voting systems. Standards are also included for the use of voter-verified
paper audit trails (VVPAT), a recent security measure developed in response to
concerns that electronic voting machines are vulnerable to tampering that might
otherwise be difficult to detect. Volume II provides details of the testing process for
certification of voting systems and has few revisions.
Some issues associated with the VVSG have been controversial. Among them
is the question of timing. Some vendors claim that there needs to be more time for
technology development before the new guidelines become effective; some activists
argue that problems with voting systems, and HAVA provisions, demand more rapid
implementation of the VVSG. In any event, it is generally considered unlikely that
the guidelines will have much direct impact on voting systems used in 2006, when
HAVA requirements for voting systems go into effect. One exception may be the
VVPAT provisions, since the VSS, under which most current voting systems are
certified, have no provisions relating to this innovation. The VVSG will be voluntary,
but some observers believe that a regulatory approach would be more appropriate
given the importance of elections to the democratic process. However, since many
states require that voting systems be certified, vendors are expected to treat the VVSG
in the same way they have treated the VSS — as effectively mandatory.
Among the other issues being debated about the guidelines are whether they
should be expanded to include voter registration systems, whether they impede
innovation by focusing on integrated systems rather than components, how to treat
commercial off-the-shelf (COTS) products that are incorporated in voting systems,
and whether a graded certification would be more effective than the current pass/fail
approach. Several bills introduced in the 109th Congress could affect the scope or
other aspects of the VVSG by requiring VVPAT or other security provisions,
addressing concerns about conflict of interest, and other measures. None have
received committee or floor action in either chamber during the first session. This
report will be updated in response to major developments.
Historical Context of the Guidelines...................................2
Summary of Guidelines.............................................5
Issues Raised by Guidelines..........................................6
Technical Guidelines versus Regulatory Requirements................6
What Standards Can and Cannot Do...............................7
The Development Process for the VVSG............................8
The Scope and Features of Revisions in the VVSG...................11
The VVSG and the 2006 Federal Election..........................13
The VVSG and Voter Registration Systems.........................14
Integrated versus Component Certification.........................14
Use of Commercial Off-the-Shelf (COTS) Software.................15
Grading versus Pass/Fail Certification.............................15
Verification Systems, Including VVPAT..........................15
Legislative Proposals in the 109th Congress.............................16
Appendix 1. Section-by-Section Summary of the VVSG...................18
Volume I ...................................................18
Appendix 2. Abbreviations.........................................27
Federal Voluntary Voting System
Guidelines: Summary and Analysis of
The Help America Vote Act of 2002 (HAVA, P.L. 107-252) established the
federal Election Assistance Commission (EAC) and gave it the responsibility to
develop a set of Voluntary Voting System Guidelines (VVSG). The guidelines are a
set of technical standards for computer-assisted voting systems that will replace the
federal voluntary Voting Systems Standards (VSS) originally developed under the
auspices of the Federal Election Commission (FEC). Like those standards, the
guidelines are intended to be used in the development and certification of voting
systems. The VVSG are to provide a set of specifications and requirements to be used
in certification testing by independent laboratories.
The EAC released a draft set for public comment in June 2005. That draft is a
partial revision of the VSS. The most extensive revisions are to the section on
usability and accessibility and the section on security of voting systems, which have
been largely rewritten. The public comment period on the guidelines closed
September 30. The EAC had expected to have the final version of the VVSG revised
in response to those comments and ready for approval in October, but the large
number of comments received at the end of the period has created uncertainty about
when the guidelines will be finalized.
Many issues about the VVSG have been raised by voting system manufacturers,
state and local election officials, academic researchers, professional and trade
associations, public interest groups, and members of the public. Among the
questions are the following:
!To what extent are the VVSG truly voluntary rather than regulatory?
!What is the appropriate role of the VVSG and similar standards?
!Is the process by which the VVSG are developed the most
appropriate for ensuring high-quality, timely standards for voting
!Is the scope of the revisions in this version of the guidelines
!What impact will the VVSG have on the 2006 federal election?
!Should the scope of the VVSG be expanded to include voter
!To what extent should the guidelines accommodate interoperable
components of voting systems rather than integrated systems?
!How should certification of commercial off-the-shelf (COTS)
products be managed in the VVSG?
!Should the certification process result in ratings of voting system
performance or is the current pass/fail system adequate?
!How should the guidelines treat voter-verified paper audit trails and
other verification systems?
This report begins with a discussion of the historical context of the VVSG,
followed by a summary of the guidelines and a discussion of each of the issues
identified above. However, there are many specific issues, such as whether wireless
communications should be permitted, that are not covered here. The report also
briefly summarizes relevant legislative proposals in the 109th Congress. It contains
two appendices — a section-by-section summary of the guidelines and a glossary of
abbreviations used in the report.
Historical Context of the Guidelines
The VSS were developed in response to concerns raised in the 1970s and 1980s
about the then largely unregulated voting technology industry. In 1977, an FEC
advisory panel recommended the development of voluntary standards, following an
FEC-requested study released in 1975 by the National Bureau of Standards (renamed
the National Institute of Standards and Technology, NIST, in 1988). Two years later,
Congress enacted legislation directing the FEC to perform a study on the matter in
cooperation with the National Bureau of Standards. The study, submitted to
Congress in 1984, reaffirmed the advisory panel’s recommendation, and the FEC
received federal funding over the next several years to develop the VSS; however,
Congress did not establish the VSS specifically by statute (see CRS Report RS21156,
Federal Voting Systems Standards and Guidelines: Congressional Deliberations, by
by Eric A. Fischer for more detail about congressional deliberations).
The VSS were first released in 1990. They applied to computer-based voting
systems — namely, punchcard, marksense (optical scan), and direct recording
electronic (DRE) systems. They were developed for both hardware and software and
included functional and documentation requirements, performance characteristics,
and testing procedures. No standards were developed for lever-machine or hand-
counted paper ballot systems.
The FEC developed a plan to implement the VSS through cooperative action by
the FEC, NIST, a set of laboratories that would be called the independent test
authorities (ITAs), state and local governments, and voting system vendors. Under
the plan, states would adopt the standards and the ITAs would test voting systems to
determine whether they met the standards. NIST’s intended role was to assist in
accreditation of the ITAs. However, the plan did not materialize as originally
conceived. Instead, the National Association of State Election Directors (NASED),
which was established in 1989, appointed a voting systems board1 to choose ITAs
and administer a process for qualifying voting systems under the VSS. The testing
program began in 1994. NASED chose The Election Center, a professional
1 The former chair of this board, Thomas Wilkey, became the first executive director of the
EAC in June 2005.
organization of election officials, to serve as the secretariat for voting system
States began adopting the VSS, with some requiring that voting systems be
qualified under the standards before being used in the state, and others adopting
elements of the VSS into state requirements. As implementation proceeded and
technology continued to evolve, calls increased for revising and updating the VSS.
The FEC began a project to update the standards in 1997. The second version was
approved by the FEC in May 2002. The revision took a broader approach than the
original version, focusing on the voting medium — paper-based versus electronic —
rather than specific kinds of voting systems. It also included or expanded coverage
of functions and requirements not in the original version — such as accessibility and
some aspects of usability, telecommunications, and audit trails.
While this update was underway, Congress was considering legislation to
respond to the problems that arose in the November 2000 presidential election. The
enacted version, HAVA, the Help America Vote Act of 2002 (P.L. 107-252), was
signed into law in October 2002. It includes voting system requirements and an
administrative structure for promulgating standards and certifying systems. The act
established the EAC and assigned it responsibility for developing the VVSG. It also
created three bodies — a Standards Board, a Board of Advisors, and a Technical
Guidelines Development Committee (TGDC) — to provide advice on standards and
other matters; and it gave NIST a substantial role. For example, it made the director
of NIST the chair of the TGDC. Sec. 222 of HAVA effectively renamed the VSS as
the Voluntary Voting System Guidelines (VVSG),2 to be developed by the EAC
pursuant to recommendations by the TGDC and with support from NIST. Thus,
HAVA provided a statutory basis for the VSS. HAVA does not direct the EAC to
include any specific issues in the guidelines. However, in the debate on the House
floor before passage of the HAVA conference agreement on October 10, 2002, a
colloquy (Congressional Record, daily ed., 148: H7842) stipulated an interpretation
that the guidelines specifically address the usability, accuracy, security, accessibility,
and integrity of voting systems. Also, Sec. 221(e) requires NIST to provide support
to the TGDC for development of guidelines relating to security, voter privacy, human
factors, remote voting, and fraud detection and prevention.
The current VSS will serve as the guidelines until new ones are completed.
Work on development of the first version of the VVSG, a partial revision of the VSS,
began in 2004 with the appointment of the TGDC. That committee transmitted its
recommendations, in the form of a proposed version 1 of the VVSG, to the EAC on
May 12, 2005. After reviewing the recommended guidelines and making some
2 The changes in terminology are a potential source of confusion: The requirements for
voting systems established by §301 of HAVA are called Voting Systems Standards. They
are not the same as, and should not be confused with, the VSS. The EAC was also to
develop voluntary guidance (§311) to assist states in implementing the HAVA requirements
(§301-5). However, no statutory role is given to the TGDC or NIST with respect to that
guidance. Presumably, the EAC could have continued referring to the guidelines as the VSS
but has chosen instead to use the terminology contained in HAVA, possibly to avoid
confusion between the guidelines and the requirements.
revisions, mostly but not entirely of an organizational nature,3 the EAC released the
draft VVSG on June 27, 2005, for a 90-day public comment period, with adoption
initially anticipated in October 2005.4 They will go into effect two years after being
HAVA also requires the EAC to provide for testing and certification of voting
systems (§231) by laboratories it has accredited, with support from NIST, thereby
transferring that responsibility from NASED. The act stipulates that the current
system of NASED certification will continue until the EAC adopts its replacement.
HAVA does not specify whether the guidelines it establishes are to be used as the
standard against which voting systems are tested and certified, but that is how the
VSS have been used, and it is how the EAC intends to use the VVSG.6
NIST began the process of soliciting applications for accreditation in June 2005,
under its National Voluntary Laboratory Accreditation Program (NVLAP).7 It will
3 For example, Appendix D, on dual independent verification systems, was part of Section
6 in the TGDC draft. Also, recommendations on best practices that were in section text
have been moved to Appendix C. Changes were also made in some cases that narrowed or
otherwise modified provisions to line up more precisely with HAVA or other legal
requirements or for other reasons (see Election Assistance Commission, “U.S. Election
Assistance Commission Excerpt from the Public Meeting,” Transcript, June 30, 2005,
available at [http://www.eac.gov/06-30-05_Meeting.htm]). For example, two of the three
principles cited in the subsection on human factors were revised: “1. All eligible and
potentially eligible voters shall have access to the voting process without discrimination”
was changed to “1. All eligible voters shall...”; and “2. Each cast ballot shall capture the
intent of the voter who cast that ballot” was changed to “2. Each cast ballot shall accurately
capture the selections made by the voter.” Other changes were made for clarification. For
example, provision 2.2.6: “If the normal procedure includes VVPAT, the Acc-VS
[accessible voting system] should provide features that enable voters who are blind to
perform this verification” was augmented with the following: “If a state requires the paper
record produced by the VVPAT [voter-verified paper audit trail] to be the official ballot,
then the Acc-VS shall provide features that enable visually impaired voters to review the
paper record.” (EAC draft for public comment: Election Assistance Commission, Voluntary
Voting System Guidelines, 2 volumes, [hereinafter cited as VVSG, vol. 1 or vol. 2] June 27,
Electronic Privacy Information Center (EPIC), Voluntary Voting System Guidelines Version
I, Initial Report, May 9, 2005, [http://www.epic.org/privacy/voting/eac_foia/], obtained by
EPIC via a FOIA request).
4 Election Assistance Commission. “EAC Releases Voluntary Voting System Guidelines for
Public Comment,” Press Release, 27 June 2005, available at
[http://www.eac.gov/news_062705.asp]. Given the large volume of comments received, the
EAC has withdrawn that initial estimate and has not stated when adoption is now expected.
5 This means that anyone submitting a system for federal certification after that date will
need to follow the new guidelines rather than the 2002 version of the VSS. The latter went
into effect in January of 2004, 20 months after they were adopted.
6 VVSG, vol. 1, p. 1-15.
7 National Institute of Standards and Technology, “Availability of Applications for the
Laboratory Accreditation Program for Voting System Testing Under the National Voluntary
make recommendations through this program on accreditation of individual
laboratories. Because of the length of the accreditation process, in August the EAC
adopted a resolution to provide temporary accreditation to the laboratories (ITAs)
accredited by NASED.8
Summary of Guidelines
Most sections of the draft version of the VVSG released for public comment are
virtually identical to those in the 2002 update of the VSS. That was a consequence
of a stated intent by the EAC to create a version that could be used in preparation for
the 2006 election cycle.9 Consequently, major revision focused mainly on usability
and certain aspects of security. Major changes included
!addition of a conformance clause;
!revised and expanded standards for accessibility and usability;
!revised standards for security, including voter-verified paper ballots
used with electronic voting machines (DREs)10;
!some changes to testing procedures; and
!some new and expanded appendices.
A more extensive revision is reportedly underway.11 A brief summary of
provisions in the current draft is provided below, and a section-by-section summary
is included at the end of this report in Appendix 1. These summaries are intended
only to aid in understanding the basic scope and contents of the guidelines from a
legislative perspective; other writers might choose to emphasize different aspects.
The VVSG, like the VSS, are divided into two volumes. Volume I provides
performance guidelines for voting systems and is intended for a broad audience. It
includes descriptions of functional requirements and performance standards, as well
as requirements for vendors in quality assurance and in configuration management,
a complex discipline that involves ensuring that a system and its components
function in the ways they are specified to function under various modifications and
throughout their life cycles. It includes an extensive glossary and references,
suggested practices for election officials in some areas covered by the guidelines, and
discussion of verification concepts for future design of voting systems.
Laboratory Accreditation Program,” Federal Register 70, no. 116 (June 17, 2005), p. 35225.
8 NIST expects to make its initial recommendations in early 2007 (Election Assistance
Commission, “Staff Recommendation: EAC Voting System Certification & Laboratory
Accreditation Programs,” adopted August 23, 2005,
[ ht t p: / / www.eac.gov/ V SCP_082305.ht m] ) .
9 Although the VVSG will not go into effect before 2007, the guidelines are voluntary, and
states are therefore free to adopt them sooner if desired.
10 A DRE is a direct (or digital) recording electronic voting machine, where votes are
recorded directly electronic media rather than first being marked on paper by the voter.
11 See Technical Guidelines Development Committee, “Voluntary Voting System
Guidelines, Version 2, Draft,” April 13, 2005, [http://vote.nist.gov/VVSG2_20050418.doc].
Volume II provides details of the testing process for certification of voting
systems. It is aimed at a narrower audience of vendors, testing laboratories, and
election officials. It includes a description of the data that vendors are required to
provide when submitting a system for testing, and basic requirements for testing
against the standards described in Volume I. It also provides guidance and
requirements for testing laboratories in planning tests and reporting certification
Issues Raised by Guidelines
Many of the issues described below, as well as a number of more specific ones,12
have been captured in the various public comments made on the draft VVSG.
Commenters include election officials, vendors, academic researchers,
representatives of professional associations and interest groups, and members of the
public. However, the discussion is not limited to issues raised in the comments.
Technical Guidelines versus Regulatory Requirements
The VVSG, like the VSS before them, are voluntary technical standards, not
regulatory requirements. Such standards are usually developed through a consensus
process. They are common in industry, and federal law encourages their use by
federal agencies.13 Some observers believe that making standards voluntary at the
federal level cannot ensure sufficient quality of voting systems and that adherence
should be mandatory or at least a condition of receiving any federal grants for voting
equipment.14 Others state that mandatory standards would give too large a role to the
federal government and reduce the flexibility of state and local governments to
respond to their specific needs. They also point out that most states have adopted the
VSS in whole or in part — many require that any new voting systems purchased
adhere to the VSS or VVSG. The practical effect of such state requirements is that
voting system vendors can successfully market systems only if they are certified
under the VSS or VVSG. In this sense, the provisions have acquired some of the force
of regulation, in that they are treated by manufacturers as requirements. Comments
by vendors often reflect that perception.
HAVA addresses this controversy by establishing some specific requirements
for voting systems (Sec. 301), but leaving the method of implementation to the states
12 See Election Assistance Commission, “Voluntary Voting System Guidelines: View
Comments,” October 13, 2005, [http://guidelines.kennesaw.edu/vvsg/view_section.asp].
13 Section 12(d) of the National Technology Transfer Advancement Act of 1995 (15 U.S.C.
272 note) requires federal agencies to use voluntary consensus standards except where they
would be “inconsistent with applicable law or otherwise impractical.” Office of
Management and Budget Circular A-119 provides guidance for implementing this provision
of the 1995 act.
14 Congress has made some standards mandatory for federal agencies. For example, the
Federal Information Security Management Act of 2002 (P.L. 107-296) requires that federal
agencies adhere to a set of computer-security policies, standards, and practices, but these do
not apply to voting systems, which are under the purview of state and local governments.
(Sec. 305). The act is largely silent on the relationship between the VVSG and the
Sec. 301 requirements.15 The EAC is required to provide guidance for implementing
the requirements (Sec. 311–312), but the guidance is not a technical standard and its
use is also voluntary.
What Standards Can and Cannot Do
There are many different kinds of standards. They may be classified according
to purpose — e.g., product, process, testing, or interface standards. They can also be
classified according to their focus — commonly, a distinction is made between
performance standards, which focus on function, and design standards, which specify
features, dimensions, or other such characteristics.16 A third classification is based on
how standards are developed and implemented. They may be developed through
consensus or some other process. They may be implemented voluntarily, or they may
also be imposed, for example by law, and therefore mandatory. Standards may also
be open or proprietary, but different observers define “open standard” somewhat
differently. Some form of open standards is the approach used typically by major
standards organizations such as the American National Standards Institute (ANSI).17
The VVSG and the VSS before them do not fall neatly into any one of the above
categories. They combine product, process, and testing requirements. They are
intended to be performance-based, but in some cases they provide fairly specific
design details. That has been criticized by some observers as not providing sufficient
flexibility for innovation, but it has been praised by others as providing more precise
requirements. The VVSG have also been criticized, on the one hand, for being too
precise and detailed, and on the other, for being too vague and ambiguous.18 Also,
they are voluntary at the federal level but mandatory in a number of states. Finally,
the process of development of the VSS might best be described as having been only
partially open. With the involvement of NIST and the various EAC boards and
committees, the development of the VVSG is arguably more closely akin to a typical
consensus process for standards development.
15 Those requirements are that voting systems must provide for auditability, accessibility,
and ballot verification and error correction by voters, that states must set standards for what
constitutes a vote on a given system, and that machine error rates of voting systems must
conform to the standards set in the VSS. This last requirement (Sec. 301(a)(5)) is the only
direct connection in the act between the requirements and the VVSG. It does arguably
provide further impetus for vendors to have systems certified under the VVSG and for states
to require that they do so. In contrast, Sec. 251(d) specifically exempts states from
adherence to the VVSG as a condition for receipt of payments to meet HAVA requirements.
16 This distinction may be somewhat artificial. A focus on performance versus design can
also be thought of as end points on a continuum, or even as different dimensions that may
be differentially emphasized.
17 ANSI is a private, nonprofit organization that administers and coordinates the U.S.
voluntary private-sector standardization system (American National Standards Institute,
“About ANSI,” n.d., [http://www.ansi.org/about_ansi/overview/overview.aspx]).
18 Of course, it is possible for both kinds of criticisms to be valid if, for example, they refer
to different parts of the guidelines.
Properly designed standards can provide a clear baseline of expected
performance. In conjunction with a well-implemented certification program, they can
provide assurances to all parties that voting systems will operate according to
specifications. The VSS and the NASED certification program are widely credited
with having greatly improved the performance of voting systems in several areas, such
as reliability and accuracy.
However, standards can address only those issues that were considered by the
developers, and the way that the standards are developed and implemented can also
affect the way issues are addressed. Those factors can lead to at least two kinds of
problems. First, specifications and testing might not reflect real-world conditions.
That has been a criticism of the VSS and especially certification testing, which was
done in a laboratory testing environment rather than realistically simulated election
conditions. Thus, consideration of error rates in the 1990 VSS was limited to machine
error and did not take into account the kind of voter error that became such a central
issue in the 2000 presidential election.
Second, standards may not be able to anticipate changed conditions. This is
especially true for rapidly evolving information technology. For example, the security
weaknesses found over the past few years in some DREs19 were discovered in systems
that had been certified under the VSS.20 Those 1990 standards could not anticipate the
rapid evolution of information technology and the kinds of security threats to which
it would be subjected.
The Development Process for the VVSG
HAVA created a relatively complex process for the development of the VVSG.
Proposed guidelines are developed by a technical committee chaired by the director
of NIST. Those are then considered by two EAC boards — the Standards Board,
consisting of state and local election officials from all the states, and the Board of
Advisors, consisting of representatives of various groups specified in the act — and
finally, by the EAC commissioners, after a public comment period.
Even without that complexity, the development of standards can involve lengthy
deliberations. That is especially true for consensus standards,21 but even the two
19 For details, see CRS Report RL32139, Election Reform and Electronic Voting Systems
(DREs): Analysis of Security Issues, by Eric A. Fischer.
20 In the 1990 version of the VSS, the security section was under 6 pages in length. In the
21 The IEEE, which is involved in a broad range of standards-development projects, began
developing a standard for polling-place voting equipment in 2001 but did not produce a
consensus document before the draft VVSG was released (see IEEE, “Voting Equipment
Standards: Project 1583,” January 5, 2005, [http://grouper.ieee.org/groups/scc38/
1583/index.htm]). However, the organization is continuing to develop standards for
electronic data interchange for voting systems under a project begun in 2002 (see IEEE,
“Voting Systems: Electronic Data Interchange: Project 1622,” December 3, 2004,
versions of the VSS took years to develop. International standards are often updated
on a three- to five-year cycle. HAVA does not specify an updating cycle for the
VVSG, although Sec. 215(a)(2) requires the Standards Board and the Board of
Advisors to meet at least once a year “for purposes of voting on the voluntary voting
system guidelines referred to it…,” and Sec. 301(c) requires that guidance for the
implementation of requirements be updated every four years. The first version of the
VVSG, currently under EAC consideration, is not anticipated to go into effect until two
years after adoption.22 That implies an initial revision cycle of at least two years,
although the TGDC has already begun work on the second version.
Some observers believe that a four-year development cycle is desirable, to permit
systems to be used for two federal election cycles without requiring recertification.
Others have criticized the process for development of the VVSG as being too slow and
cumbersome, given the rapid development of information technology and associated
issues. Others point out that rapid development and frequent revision could create
serious financial and logistical difficulties for both vendors and election officials in
trying to conform to the guidelines, as well as having a potentially negative impact on
the quality of any revisions. This issue has been raised not only with respect to the
release and effective date of the current VVSG draft, but also subsequent revisions.
There appears to be an inherent conflict in responsiveness of the guidelines to, on the
one hand, evolving needs and technology and, on the other, time and cost constraints
inherent in responding appropriately to such changes. Achieving the right balance
between them is likely to be difficult.
The Internet Engineering Task Force (IETF), a professional group involved in the
evolution of Internet architecture, has addressed the challenge of rapid development
and change by creating a system for developing standards that is performed largely
online. Interested parties form a working group that is completely open to anyone
interested. There is no active attempt by the IETF to guarantee a balance among
different interests. The group identifies the scope of a standard and begins developing
it. Drafts are posted online and comments incorporated. Once the group reaches a
rough consensus, the draft is sent to the Internet Engineering Steering Group (IESG)
for independent review, after which the draft may become a standard through some
additional steps.23 According to some observers, the use of such a fully open, online
process, rough consensus, and independent review results in “cleaner” standards and
a more rapid process than the more traditional approach. Whether the method could
be adapted for the VVSG is not clear, especially given the complexities inherent in
both the goals of the guidelines and much voting technology. An attempt to use such
22 EAC, “EAC Releases Voluntary Voting System Guidelines.”
23 For details, see Internet Engineering Task Force, “The Tao of IETF: A Novice’s Guide
to the Internet Engineering Task Force,” RFC 3160, August 2001,
[ h t t p : / / www.i e t f .or g/ t a o.ht ml ] .
an approach has been developed for the purpose of creating performance ratings for
voting systems but has not yet led to any public results.24
Another issue has to do with how other accepted standards are used and
incorporated in the VVSG. For example, the draft guidelines reference many NIST
standards publications that are generally designed for use by federal agencies under
the Federal Information Security Management Act (FISMA).25 Some observers argue
that product standards such as the Common Criteria (ISO/IEC 15408), which provides
a set of evaluation criteria for the security of information technology,26 would be more
The development of plans for certification testing is also an issue. Volume II of
the VVSG specifies that testing laboratories are to develop explicit plans for the
certification testing. Some observers believe that those plans, like the VVSG itself,
should be public and that opportunities for public comment should be given before
they are finalized. However, since the plans are to be designed for each submitted
system and based on the data provided by the vendor, it is not clear that public
disclosure would be possible without releasing proprietary information. Similar
concerns have been raised with respect to the call from some observers that the results
of the certification testing be made publicly available. Some argue that making such
information public would be a disincentive to investment and innovation by industry.
Others disagree and state further that, given the important role that voting systems
play in the democratic process, the public trust is best served by full disclosure.
Some observers have also raised questions about the methods for determining
how testing laboratories are chosen. Under the NASED process, there has been little
to no competition among different laboratories. Critics have expressed concern that
the result has been higher costs for certification testing and barriers to the timely
certification of systems from smaller, innovative manufacturers. The NVLAP
accreditation process being developed under EAC auspices is expected to address such
concerns by increasing the number of laboratories involved. However, this approach
has also been criticized: “[W]hen testing authorities compete against each other for
business, a vendor can select the authorities most favorable to its products or negotiate
for advantageous testing procedures.”27 Those critics argue that government or
nonprofit testing centers would be a better approach.
24 See [http://www.vspr.org].
25 FISMA is title III of the E-Government Act of 2002, P.L. 107-347.
26 For more information on this standard, see CRS Report RL32777, Creating a National
Framework for Cybersecurity: An Analysis of Issues and Options, by Eric A. Fischer.
27 National Research Council, Asking the Right Questions about Electronic Voting
(Washington, D.C.: National Academies Press, 2005), p. 6-16, available at
The Scope and Features of Revisions in the VVSG
The VSS were criticized for inadequately addressing usability, security,
administrative procedures and practices, performance in actual use, voter registration
systems, and other aspects of election administration. Those criticisms have been
partially addressed in the VVSG. As described in the section above summarizing the
guidelines, the TGDC decided to produce only a partial revision of the VSS as the first
version of the VVSG. Except for new sections on human factors (usability and
accessibility) and security, and the addition of some new appendices, the VVSG is
largely unchanged from the 2002 version of the VSS.
The two major areas of revision are arguably the most important for immediate
action, since usability and accessibility are major focuses of HAVA voting system
requirements, and security concerns have been prominent in recent public debate
about voting systems, especially DREs. Some observers welcome this restricted
focus, believing that limited changes are more likely to be implementable in the short
term. Others, however, believe that broader changes to the VSS are more urgently
needed and that the draft VVSG should have been more thoroughly revised with more
stringent requirements. Some believe that an “end-to-end” or “life cycle” approach
is needed, and that standards or guidelines should be developed for technology,
procedures, and personnel across all entities involved in election administration,
ranging from developers and manufacturers of voting systems to pollworkers. It is not
yet clear to what extent future versions of the VVSG may take such an approach. Still
other observers have expressed concerns that the first version of the VVSG has created
more new requirements for certification than is prudent for an interim document,
which is intended to be followed by a more complete revision.28 Those observers
propose delaying adoption of the VVSG until it can be thoroughly revised.29
Yet others believe that the added provisions are inadequate to meet accessibility,
alternative language, and security needs and that broader and more stringent
requirements are needed. For example, some of the provisions in the sections on
human factors and security have been criticized for being recommendations rather
than requirements, the concern being that they do not therefore ensure full compliance
with HAVA’s accessibility requirements.30 There is also concern among some that
the VVSG do not adequately cover the full range of disabilities as required by HAVA.
Disabilities that are specifically addressed relate to vision, dexterity, mobility, hearing,
28 See, for example, statements of some vendors at Election Assistance Commission, “U.S.
Election Assistance Commission Public Meeting,” Transcript, June 30, 2005, available at
[ h t t p : / / www.eac.go v/ 06-30-05_Hear i n g.ht m] .
29 While the TGDC has referred to a Version I and Version II of the VVSG, the latter to be
the thorough revision, the EAC has preferred not to use that terminology (Ibid.).
30 Sec. 188.8.131.52.2.2.1 reads, “The vendor should conduct summative usability tests on the
Acc-VS using blind subjects and report the test results to the voting system test lab…”
(VVSG, Vol. 1, p. 2-14). This is intended to be an interim recommendation until the testing
laboratories have developed usability testing procedures. However, other provisions
containing recommendations do not appear to be interim, such as Sec. 184.108.40.206.3.4, “The Acc-
VS should provide a mechanism to enable non-manual input that is functionally equivalent
to tactile input.”
speech, and cognitive function, although little to no detail is provided for the last two.
There are several different ways to categorize disabilities, and the VVSG provide
neither a source for the list used nor any indication of how exhaustive it is intended
to be. The guidelines also state, “As a practical matter, there may be a small number
of voters whose disabilities are so severe that they will need personal assistance.”31
The revised security provisions have also raised questions among some
observers. For example, some state-sponsored studies used penetration testing —
deliberate attempts to break into voting systems — in attempting to address security
issues associated with voting systems.32 This is a fairly common technique in security
testing, and some observers believe that it should be required by the guidelines. Other
observers have expressed concern that some of the different requirements may be
conflicting — that meeting one will require violating another.
Some have also pointed to concerns about specific elements of the VSS that were
not examined by the TGDC. One particularly contentious provision is the requirement
that failures occur no more often than every 163 hours of use.33 Some observers argue
that this is far too low, permitting 10% of precinct-based electronic systems to fail
during an election.34 Others argue that the more relevant standard is availability —
which stipulates that the time it takes to repair a system must be short enough that it
is available 99% of the time it is needed. However, availability is tested under
laboratory conditions, and in practice may depend on factors such as whether someone
is present at the polling place who can effect any needed repairs. Therefore, a system
that achieves an availability score greater than 99% in testing might not achieve that
level in actual use.
Whether the VVSG should include management guidelines for election
administrators is also a matter of some dispute. In the current draft, best practice
recommendations have been placed in an appendix, whereas they were in the
numbered sections in the TGDC recommendation document. Their removal to an
appendix eliminates any ambiguity with respect to their role, or lack of it, in the
certification process. However, the development of a set of administration or
management sections in future versions of the VVSG could raise the question of
whether certification protocols should be developed for election administration. That
possibility may be worthy of consideration, but it could require an additional
31 VVSG, Vol. 1, p. 2-12.
32 See, for example, Maryland Department of Legislative Services, “Trusted Agent Report:
Diebold AccuVote-TS Voting System,” prepared by RABA Technologies Innovative
Solution Cell, 20 January 2004,
33 See summary of Volume I, Section 3 in Appendix 1. The figure is for the mean time
between failures (MTBF).
34 Presumably, this figure is derived by dividing an average time of use of 15 hours on
election day for a DRE or precinct-count optical scan voting system by the MTBF, yielding
a quotient of 9.2%.
certification mechanism for election jurisdictions as well as vendors, depending on the
focus of the management requirements.35
The VVSG and the 2006 Federal Election
Even with the limitations in scope of initial change to the VSS, there is some
question what impact the VVSG can have on the 2006 election.36 The EAC has
indicated a desire to finalize the guidelines soon after the close of the comment period
at the end of September 2005, but it has received more than 4,000 individual
comments altogether.37 In addition, the VVSG are not scheduled to go into effect until
two years after adoption — that is, no sooner than fall 2007. Until that time, federal
certification of voting systems will presumably continue to be based on the 2002 VSS,
although state or local jurisdictions may choose to require vendors to meet some or
all of the VVSG requirements sooner, and the EAC plans to issue guidelines to assist
states in implementation.38 That may be especially important for those jurisdictions
that require a voter-verifiable paper audit trail for use with DREs, since that option is
not covered by the VSS but is covered by the VVSG.
Some observers have expressed concern that uncertainties about the VVSG
development and implementation have resulted in delays by states in procuring new
voting systems to meet HAVA requirements. Among the reasons are worries about
acquiring new systems in time for the January 2006 deadline that might later be
deemed not to be in compliance with the requirements, or not obtaining systems of as
high a level of quality as would be possible once the VVSG go into effect. Similarly,
some observers are concerned that systems in use that were certified under the VSS but
not the VVSG could be effectively decertified once certification under the VVSG
begins. Those concerns are amplified by uncertainties with respect to federal funding
for future acquisitions. One proposed solution is for the EAC to advise jurisdictions
that systems conforming to the 2002 VSS will satisfy HAVA requirements. However,
that version of the VSS was released before HAVA was enacted, and since the EAC
has no regulatory authority, it is not clear what effect such advice would have. Other
35 For discussion of practice standards and certification in the context of cybersecurity, see
CRS Report RL32777, Creating a National Framework for Cybersecurity: An Analysis of
Issues and Options, by Eric A. Fischer.
36 See also Government Accountability Office, Federal Efforts To Improve Security and
Reliability of Electronic Voting Systems Are Under Way, but Key Activities Need To Be
Completed, GAO-05-956, September 2005.
37 The large volume of comments has resulted in delay in finalizing the VVSG and no date
for adoption has been set.
38 Sec. 8.1 of the VVSG states: “[T]he effective date provisions do not apply to the
mandatory provisions of Section 301(a) of the Help America Vote Act (HAVA), which
states must comply with on or before January 1, 2006. While the Guidelines set
requirements and measures against which voting systems can be examined, they may
represent a higher standard than what is required by Section 301(a) of HAVA. To make sure
states are able to be in compliance by the January 1, 2006 deadline, EAC will issue guidance
to interpret Section 301(a).” Such guidance was not publicly available as of late October
2005. It is not clear whether meaningful guidance would be possible if issued in the
remaining two months of the year.
observers believe that delaying the implementation of the VVSG means that the 2006
federal election will need to be conducted with voting systems that are not designed
to conform to HAVA requirements. Another concern raised by some is that the
proposed fall 2007 implementation date may not leave sufficient time for vendors and
states to develop and acquire conforming systems before the 2008 federal election.
The VVSG and Voter Registration Systems
The focus of the VSS has been limited to polling-place and central-office systems
involved in the conduct of an election — from ballot preparation to election
certification. Neither the VSS nor the first version of the VVSG address the technology
used to create and manage voter registration lists. Sec 221(3)(2)(a) of HAVA requires
NIST to provide technical support for development of guidelines relating to the
computerized statewide voter registration lists mandated by Section 303(a) of HAVA.
That arguably implies congressional intent that the VVSG cover that topic, but HAVA
does not explicitly require that. The data interchange standards being developed by
IEEE include voter registration data.39 However, there are currently no formal or
widely accepted standards for those lists, and that absence has raised concerns about
adequate state implementation of the requirement by the January 2006 deadline.
Integrated versus Component Certification
The VVSG focus on voting systems rather than on individual components. While
they permit the submission of interoperable components for certification, they require
that “vendors shall submit for testing the specific system configuration that will be
offered to jurisdictions or that comprises the component to be marketed plus the other
components with which the vendor recommends that the component be used.”40 This
implies, in essence, that a vendor wishing to submit a component that could be used
with different voting systems would have to submit those systems along with the
component for certification testing. Some observers argue that this restriction stifles
innovation by requiring that those vendors who wish to market devices that can be
used with existing voting systems negotiate agreements with voting-system vendors
before certification of their components. However, such agreements may be difficult
to obtain before a component is certified or may entail restriction on the use of the
component to only one brand of voting system.41 One proposal to address this concern
is to allow certification of components separately, but require that they subsequently
be certified with each voting system with which they would be used.
39 IEEE, “Project 1622.”
40 VVSG, Vol. II, p. 1-7 to 1-8.
41 See, for example, the statement of Jim Adler of Votehere before the EAC at the June 30,
2005 public meeting (Election Assistance Commission, “U.S. Election Assistance
Commission Public Meeting,” Transcript, June 30, 2005, available at
[http://www.eac.gov/06-30-05_Hearing.htm]). Adler used the example of an Independent
Dual Verification (IDV) system to illustrate the problem.
Use of Commercial Off-the-Shelf (COTS) Software
Most if not all voting systems use some form of COTS software that is
proprietary — that is, the code is not publicly available. The use of COTS software
is somewhat controversial. It is much less expensive in general to use such software
when appropriate than to develop code specifically for the voting system. In addition,
some commercial software, such as Microsoft Windows, has become standard, with
computer hardware developed specifically to work with it. However, vendors have
no control over how the COTS software is coded, and the code may be very complex.
Code examination is not required under the VVSG for unmodified COTS software,
and general-purpose software such as operating systems may be exempt from detailed
examination. Some observers object to this exemption, arguing that it creates
unacceptable security risks. Others believe that the guidelines should prohibit the use
of COTS software altogether (although presumably they are referring to its use in a
voting or counting machine, not in back-office computers used in such tasks as ballot
preparation). Proponents counter that VVSG safeguards are adequate and that the use
of COTS software permits superior applications at far lower cost than custom software
Grading versus Pass/Fail Certification
Under the VVSG testing scheme, voting systems pass or fail, but no additional
information is provided to potential customers or the public about details of
performance of certified systems — such as to what extent the tested system exceeded
the standards. Some observers believe that a certification regime that provided more
finely graded performance reports would be very useful in stimulating innovation and
helping election officials decide which systems are best suited to their jurisdictions.
However, to the extent such grading was subjective, it could be misleading or
potentially subject to abuse. In 2004, a group of computer experts, vendors, election
officials, social scientists, and advocates started the Voting System Performance
Rating (VSPR) project, which aims at developing performance rating standards for42
U.S. voting systems, but there has been no public indication from the group about
when such standards might be expected.
Verification Systems, Including VVPAT
One thing added to the VVSG was a discussion of methods by which votes could
be verified. For one such method, the voter-verified paper audit trail, or VVPAT, the
VVSG provides standards, since such systems have been mandated by several states.
However, several other kinds of such systems exist, and some are described in an43
appendix to the guidelines, with some guidance for how they might be implemented.
The systems described all have the characteristic of providing two independently
verifiable channels for processing votes and are therefore called Independent Dual
42 See “Voting System Performance Rating Charter,” 15 December 2004, available at
[http://www.vspr.org/vspr-charter.pdf], and P. L. Vora and others, “Evaluation of Voting
Systems,” Communications of the ACM, Vol. 47, No. 11 (November 2004): p. 144.
43 VVSG, vol. 1, appendix D.
Verification (IDV) systems in the VVSG. The possible need for such systems has
become a matter of public interest because of the controversy over the security of
DREs. While most public attention has been paid to VVPAT, other methods arguably
show more promise in terms of usability, accessibility, and verification power.44
Some observers believe that IDV systems — especially, VVPAT — are essential
to ensure security of and confidence in electronic voting, whereas others believe that
the costs and complexity of at least some IDV systems are disadvantages that
outweigh any benefits. The guidelines do not require such a system, although such a
requirement was considered by the TGDC.45 Some observers believe that the VVSG
should require VVPAT, but others believe that the verification provided by that
method is of questionable value in practice and may create unforeseen problems of its
own. Some also believe that the accessibility and alternative language provisions
relating to VVPAT do not ensure full compliance with HAVA and other federal
requirements. Still others believe that the VVSG should provide more stringent
requirements with respect to what kinds of data should be recorded by voting systems
for audit purposes. In any case, the trend at the state level toward requiring the use of
VVPAT to address security issues is raising significant questions about whether such
requirements can be reconciled with HAVA accessibility requirements under the
constraints imposed by current technology.
Legislative Proposals in the 109th Congress
Several bills introduced in the 109th Congress could affect the scope or other
aspects of the VVSG. They include the following proposals:
!Adding provisions on security of electronic data (H.R. 278);
!Requiring submission to and testing of voting machine software by
states before an election (H.R. 470);
!Requiring use of a voter-verified paper audit trail (H.R. 278, H.R.
!Requiring the use of a verification method involving paper, audio, or
other means, and relevant standards (H.R. 533, S. 17; H.R. 939 for
voters with disabilities);
!Requiring that voting systems used for disability access separate the
functions of vote generation, verification, and casting (H.R. 550, H.R.
!Requiring the EAC to develop best practices for voter-verification for
persons with disabilities and languages other than English (H.R. 550);
44 For more detailed discussion, see CRS Report RL32139, Election Reform and Electronic
Voting Systems (DREs): Analysis of Security Issues, by Eric A. Fischer.
45 Resolution 13-05, “Voter-Verifiability II,” which was not approved by the TGDC,
interpreted Sec. 301(a)(2) of HAVA to require that the paper record produced for manual
audit be voter-verifiable (see National Institute of Standards and Technology, “Voluntary
Voting Systems Guideline Version 1 (VVSG 1) - Draft Materials & Versions: Proposed
TGDC Resolutions,” January 2005, [http://vote.nist.gov/resolutions_jan05.doc]).
!Requiring the EAC to develop standards on conflict of interest for
testing laboratories, manufacturers, and/or other entities involved
with voting machines (H.R. 470, H.R. 533, H.R. 550, H.R. 3094);
!Requiring the EAC to develop standards for the minimum number of
voting machines at polling places (H.R. 533, H.R. 939, S. 17, S. 450);
!Requiring the use of open-source software in voting systems (H.R.
!Prohibiting the use of wireless communications by voting systems
(H.R. 550, H.R. 939, H.R. 3094, S. 450);
!Requiring public disclosure of information relating to certification of
voting systems (H.R. 550);
!Requiring the EAC to establish standards for early voting (H.R. 533,
H.R. 939, S. 17, S. 450) and for a federal write-in absentee ballot
!Requiring manufacturers to follow security standards as specified by
NIST (H.R. 939, S. 450);
!Requiring the EAC to establish a benchmark for voter error-rates
(H.R. 939, S. 450);
!Requiring EAC certification of technological security of state voter
registration systems (H.R. 939, S. 450);
!Prohibiting states from not registering certain voters or removing
them from registration roles unless accuracy standards established by
NIST are met (H.R. 3094).
None of the above bills have received committee or floor action in either
Appendix 1. Section-by-Section Summary of the
Section 1 lays out the overall objectives for the guidelines: to specify what a
voting system should do — how it should function and perform — as well as
documentation requirements and evaluation criteria for certification. It describes
background on the history of the guidelines and describes what a voting system is —
not just a voting machine but also software and documentation relating to steps in the
election process ranging from ballot definition through system audit.46 It characterizes
voting systems as either paper-based (such as punchcard and optical scan systems) or
direct recording electronic (DRE), which are the two kinds of computer-assisted
system currently in use, and distinguishes precinct- and central-count systems, but it
recognizes that the distinctions may blur with future technology. This section also
describes application of the guidelines and test specifications, pointing out that
commercial off-the-shelf (COTS) products are exempt from some aspects of
certification if they are not modified for use in a voting system. The VVSG contains
a new subsection, a “conformance clause,” which broadly defines what is required of
46 This definition is similar to that in both the 2002 VSS and Sec. 301(b) of HAVA. The
VVSG defines a voting system as
The integrated mechanical, electromechanical, or electronic equipment and
software required to program, control, and support the equipment that is used to
define ballots; to cast and count votes; to report and/or display election results;
and to maintain and produce all audit trail information. It additionally includes
the associated documentation used to operate the system, maintain the system,
identify system components and their versions, test the system during its
development and maintenance, maintain records of system errors and defects,
and determine specific changes made after system certification. A voting system
may also include the transmission of results over telecommunication networks.
(Vol. 1, p. A-35)
HAVA defines a voting system as
(1) the total combination of mechanical, electromechanical, or electronic
equipment (including the software, firmware, and documentation required to
program, control, and support the equipment) that is used—
(A) to define ballots;
(B) to cast and count votes;
(C) to report or display election results; and
(D) to maintain and produce any audit trail information; and
(2) the practices and associated documentation used—
(A) to identify system components and versions of such components;
(B) to test the system during its development and maintenance;
(C) to maintain records of system errors and defects;
(D) to determine specific system changes to be made to a system after the initial
qualification of the system; and
(E) to make available any materials to the voter (such as notices, instructions,
forms, or paper ballots).
those implementing the specifications in the guidelines and is a common feature of
Section 2 describes the functional capabilities that a voting system is expected
to have and is the longest chapter in the VVSG. Required capabilities include the
!Security. This involves both technical and administrative controls
and is discussed in detail in Section 6.
!Accuracy. This involves both accurate recording and error detection,
and specifies that DREs must retain redundant records of all votes
!Error Recovery. Systems must be able to recover from malfunctions
and resume operating with data intact.
!Integrity. Systems must be protected against outside perturbations
such as loss of power or attempts at improper data inputs, and must
record and maintain specific audit data.
!System Audit. Generation of audit records is to be largely automated,
including continuous “real-time” data on machine status along with
accurate time and date information, and error messages where
appropriate. COTS operating systems must have specific protections
against vulnerabilities that could affect audit data.
!Election Management System. This involves databases that assist
officials in performing a wide range of functions, from defining
political subdivisions through the processing of election audit reports.
!Human Factors. This subsection has been greatly expanded and
revised. The standards in it are based on three principles —
nondiscriminatory access to voting, accurate capture of ballot
selections, and preservation of ballot secrecy. It contains more than
50 specific provisions describing required and recommended features
responding to disabilities relating to vision, dexterity, mobility,
hearing, speech, and cognition, as well as limited English proficiency
and alternative language accessibility. It also contains interim47
provisions relating to usability for all voters, based on both HAVA
requirements and established usability principles.
!Vote Tabulating Program. Systems must have software for
tabulating votes that is flexible, accurate, and includes monitoring
and audit functions.
!Ballot Counter. Systems must have accurate, tamper-proof ballot
counters that are visible to election officials.
!Telecommunications. Systems that use telecommunications must
transmit data with no alteration or unauthorized disclosure.
!Data Retention. Systems must provide for retention of records in
accordance with applicable federal law.
!Prevoting Functions. Systems must support preparation, installation,
and control of ballots and election programs; testing for readiness;
47 Only interim provisions are provided because of the limitations of existing research on
high-level performance-based requirements (VVSG, vol. 1, p. 2-33 – 2-34).
and verification of functions both centrally and at the polling place.
!Voting Functions. This involves ensuring that only properly tested,
activated, and functioning devices are used in voting, and that
systems facilitate accurate and secret casting of ballots and respond
appropriately to power or telecommunications interruptions.
!Postvoting Functions. Systems must accumulate and report both
results of the election and audit trails and prevent additional voting
after the polls are closed.
!Maintenance, Transportation, and Storage. Systems must be capable
of being stored and transported without degradation in capabilities.
Section 3 covers requirements for voting system hardware, from printers to
voting devices to paper ballots to back-office computer equipment, regardless of
source. These include
!performance requirements such as accuracy;48 operational
specifications such as electricity supply, storage, and ability to
operate under a range of environmental conditions; vote recording
specifications for voting booth, paper ballots, marking devices, ballot
boxes, various features of DREs, and so forth; ballot reading and
processing specifications for machine readers and DREs; and
specifications for printers and removable storage media, and for data
!physical requirements, especially for transport and storage of
!design, construction, and maintenance requirements, with an
emphasis on best commercial practice for design, “the lowest level
[of malfunction] consistent with cost constraints,”49 an average time-
to-failure (called MTBF or mean time between failures) in testing of
no less than 163 hours50 with time to repair short enough that the
system is available for at least 99% of the time it is needed,51 the
presence of features to assist in the reliability and maintainability of
the system, proper product labeling, quality workmanship, and safe
design and construction.
48 This is machine accuracy, not voter accuracy. The standard is one or fewer errors per 10
million events (although the maximum error rate permitted in tests is 1 in 500,000, a rate 20
times higher than the nominal standard but still far smaller than the margin of victory in
almost any election; and the maximum false-rejection rate for paper ballots is 2%, although
presumably such ballots could be hand-counted if necessary in an actual election).
49 VVSG, vol. 1, p. 3-21.
50 The VVSG (vol. 1, p. 3-22) describe a “typical…scenario” as 45 hours — 30 hours of set-
up and testing and 15 hours of operation during the election — so this standard could
arguably be interpreted to permit a failure once every 3-4 uses on average. See the section
on scope of revisions above for discussion of this issue.
51 Specifically, availability is defined as the ratio of the average time between failures and
that time plus the average time it takes to repair the system.
Section 4 covers requirements for voting system software, including firmware,52
regardless of programming language or source. These include
!design and coding, including the kinds of programming language
permitted; the importance of stable computer code53 and modular
software;54 the way program controls are constructed, and the way
components are coded, named, and commented;
!data and document retention, including accurately maintaining voting
and audit data for at least 22 months after the election, and proper
security and failure protection for devices;
!audit record data, including ballot preparation, system readiness,55
documentation of operations during diagnostic routines and ballot
casting and counting,56 and detailed vote-tally data including
overvotes and undervotes;
!vote secrecy for DREs, including erasing from temporary storage and
displays the selections of previous voters immediately after a vote is
cast or cancelled.
Section 5 covers telecommunications requirements for systems operation and
reporting election results, including performance, design, and maintenance
characteristics. It covers technologies such as dial-up communications, cable and
wireless, and high-speed lines, regardless of provider. It covers data transmission
from election preparation through preservation of data and audit trails after the
election, including voter authentication, ballot definition, vote transmission, vote
counts, and lists of voters, and other transmissions relating to voting-system operation.
Requirements are the same as those contained in Section 3 for accuracy, durability,
reliability, maintainability, and availability. For wide-area networks (WANs),57
52 The VVSG defines firmware as “computer programs (software) stored in read-only
memory (ROM) devices embedded in the system and not capable of being altered during
system operation.” (VVSG, vol. 1, p. A-16). One example is the BIOS programs on a
personal computer that are used to start the operating system when the device is first booted
up. However, in practice firmware alteration may be possible, as happens for example when
a BIOS is upgraded.
53 This is to prevent code from being changed after certification except for certain security
54 This is software designed in discrete, autonomous components or modules that can be
connected together and managed independently by computer programmers (see, for
example, Webopedia, “What is modular architecture?” 30 October 2001,
55 This is not defined but includes such things as verification of software and hardware status
before votes are counted, testing for the correct installation of ballot formats, and checking
memory locations and data paths.
56 This includes such things as error messages, zero totals, and other critical status
information, and operator interventions.
57 This is simply a computer network that spans a comparatively wide geographic area, as
opposed to a local-area network (LAN). A WAN often consists of 2 or more LANs and is
outside providers or subscribers are not permitted access inside the network boundary,
no control resources for the network are permitted outside the border, and the system
cannot be vulnerable to a single point of failure. The system must notify users of
successful and unsuccessful transmission and actions taken if transmission is
Section 6 addresses essential security capabilities for all voting systems
components regardless of source, ownership, or location, and includes controls to
minimize errors and accidents, protect from malicious manipulation, identify
fraudulent or erroneous changes, and protect voting secrecy. The section cites the
importance of effective security practices by jurisdictions but does not address them.58
Topics covered include
!access control, including general access control and individual
privileges, and specific measures such as passwords and encryption;
!equipment and data security, including physical security for polling
places and ballot-counting locations;
!software security, including installation requirements and testing of
firmware, protection against malicious software,59 and software
distribution and validation requirements to ensure that no
unauthorized modifications have been made (this is a new set of
!telecommunications and data transmission, including access control,
integrity of transmission, use of encryption to protect data from
interception, use of intrusion detection methods, protection against
external threats to COTS software, and specific requirements for
DREs that transmit data over public networks and for wireless
communications (this latter subsection is new), including the caution
that the use of wireless communications should be approached with
!optional requirements for voter-verified paper trail (VVPAT),
including requirements for handling spoiled and accepted paper
records, preserving voter privacy and vote secrecy, audit and election
data such as linking electronic and paper records, machine readability
of paper records, tamper protection, printer reliability and
maintenance, and durability of the paper record, as well as usability
and accessibility requirements (this subsection is new). Section 7
requires that vendors and third-party suppliers implement quality-
often connected through a public network such as a telephone system (Webopedia, “Wide-
area network,” February 12, 2003,
58 They are intended to be covered in a forthcoming set of best practices.
59 These include viruses, Trojan horses, and so forth.
60 This includes the requirement to deposit a copy of the software in an EAC-designated
repository for comparison during the validation process.
61 VVSG, vol. 1, p. 6-26.
assurance programs to help ensure conformance with VVSG
requirements. It includes testing, inspection, and documentation
Section 8 describes requirements for configuration management, including
descriptions of the policy, identification and acquisition of component items;
procedures used to decide what components are included in the product as it is
developed, submitted for certification, and throughout its useful life cycle; how
configuration is controlled to prevent unauthorized changes; product release;
configuration audits; and any automated tools used in configuration management.
Appendix A is a glossary, which has been substantially expanded in the VVSG.
It now lists sources and keywords (called “association”) for each entry as well as
Appendix B lists reference documents that have been incorporated into the
guidelines in whole or in part. Several new references have been added and others
Appendix C describes suggested best practices for election officials with respect
to usability and security requirements added in the VVSG. These are drawn from the
TGDC draft, in which they were embedded in Sections 2 and 6.62
Appendix D describes independent dual verification (IDV) systems, of which
VVPAT is one type. Such systems produce at least two separate, independent ballot
records that voters can verify before casting and that can be compared in a post-
election audit. Examples include
!split-process architecture, where the vote is captured on paper or
another medium and then taken to a verification station, where a
separate, voter-verified record is made and stored;
!end-to-end systems, which permit voters to verify ballot choices, even
after casting, without compromising ballot secrecy. Voters are
typically given a receipt with a code number that they can check later,
such as on a website. The use of cryptographic techniques prevents
voters from using the receipt to prove how they voted while ensuring
accurate verification with a very high degree of probability;
!witness systems, which independently record voters’ choices through
a means such as a camera that takes a picture of the choices displayed
on a DRE screen; and
!direct systems, such as VVPAT, which produce a second record that
the voter may directly verify before casting.
62 Some recommended best practices relating to language proficiency, usability, and voter-
verified paper ballots appear to have been omitted from the EAC VVSG draft. This may
have been a result of typographical error.
The appendix also discusses issues in handling records produced by IDV
systems, such as how to structure records to ensure comparability in audits, and
describes desirable characteristics for each type.63
Appendix E is a NASED technical guideline produced to assist vendors in
meeting requirements originally in the 2002 VSS to improve readability for persons
with low vision or color blindness.
Section 1 provides an overview of the certification testing process, which focuses
on operational accuracy and failure, system performance under normal and abnormal
conditions, and the quality of documentation. There are five different categories of
testing: functionality, hardware, software, system integration, and documentation of
practices for quality assurance and configuration management. Testing is to be
performed according to a test plan and in a designated sequence — from initial
examination through delivery of the test report to the EAC — that follows specified
practices. Vendors are required to submit for testing the specific system configuration
that will be offered to election jurisdictions, and testing is required for both new
systems and previously certified ones that have been modified. Some hardware is
exempt from some aspects of testing, including certain kinds of commercial
equipment that meet established standards and other criteria of compatibility and
function. If more than one laboratory is involved in testing, one must be designated
as the lead laboratory. Testing activities must be observed by one or more
independent, qualified observers. A test lab must witness the final system build by the
vendor for certification. The EAC is to develop a process for resolving issues that
arise about interpretation of the VVSG for testing.
Section 2 describes the documentation, called the Technical Data Package (TDP),
that the vendor must submit at the beginning of the certification process. The TDP
includes descriptions of system design (including specifications and constraints);
functional capabilities; performance specifications; applicable standards; requirements
for compatibility, operation, maintenance, and support; and quality assurance and
configuration management practices. The TDP must identify any proprietary
information that is not to be publicly released and must include a security
specification, among other things. Previously certified systems that have been
modified must be submitted with notes including a summary and specification of the
changes to the system, changes to documentation, and documentation of vendor
Section 3 describes testing to confirm functional capabilities as required by
Volume I, Section 2. It stresses the importance of flexibility in testing to
accommodate variations in design and technology and any additional capabilities not
described in the VVSG.
63 These characteristics are written in the same basic form as requirements are in the new
parts of the VVSG sections, and they presumably could be incorporated as requirements in
a future version.
Section 4 describes testing of hardware components to confirm that they function
properly according to the requirements in Volume I, Section 3. It includes both
operational tests and environmental tests of nonoperating equipment, including
responses to handling, vibration, low and high temperature, and humidity, as well as
response to temperature and power variation during operation and other electrical
disturbance. Testing is also done for maintainability and reliability. For accuracy
testing, a system will be rejected if it makes an error before correctly counting 26,997
ballot positions consecutively, and will be accepted if it makes no errors in
consecutively counting 1,549,703.64 Systems that fall between these two thresholds
are discussed in Appendix C.
Section 5 describes testing for proper software functioning. Code examination
is not required for unmodified COTS software, and if it is also general-purpose, and
not used for voting, detailed examination is not required. Source code is examined
for conformance to vendor specifications, adherence to requirements in Volume I,
Section 4, and use of specified control constructs65 and coding conventions.
Section 6 describes testing to confirm proper functioning of integrated voting-
system components, under normal and abnormal conditions, and including
telecommunications, security capabilities, accessibility, and any functions that exceed
VVSG requirements. Testing includes configuration audits comparing components
and functions with technical documentation of them provided by the vendor.
Section 7 describes examination of a vendor’s documented configuration
management and quality assurance processes, to verify conformance to VVSG
requirements. However, on-site examination is not required.
Appendix A contains a recommended outline for the laboratory’s testing plan,
called the National Certification Test Plan, which is intended to document the
development of certification tests. The plan is to be developed after the receipt of a
TDP from the vendor and is therefore specific to a particular system being submitted
Appendix B contains a recommended outline for the laboratory’s test report,
called the National Certification Test Report. A full report is required on initial
certification of a system, but partial reports can be prepared for certification of
subsequent modifications. The report is to include a recommendation to the EAC for
approval or rejection of the application for certification, as well as descriptions of any
uncorrected deficiencies. Those deficiencies not involving loss or corruption of data
will not necessarily lead to rejection.
64 These are chosen based on the assumption that errors occur according to a binomial
probability distribution and to provide 95% confidence that the test yields neither a false
positive (the system actually meets the accuracy standard but is rejected) or a false negative
(the system does not actually meet the accuracy standard but is accepted).
65 They include typical computer routines such as “if-then-else” and “do-while” (VVSG, Vol.
II, p. 5-3).
Appendix C, on test-design criteria, describes the principles used to design the
testing process. Design must balance the need to produce sufficient data to support
the validity of the test, on the one hand, with the need for reasonable cost of testing,
on the other. The design approach used in the VVSG is to determine if the object
being tested achieves or exceeds a minimum threshold of performance. Tests are
continued until that threshold is reached or the object fails.
Appendix 2. Abbreviations
ANSI. The American National Standards Institute, a private, nonprofit organization
that administers and coordinates the U.S. voluntary private-sector standardization
BIOS. Basic Input/Output System, a form of ROM used in computers to provide basic66
functions such as control of disk drives.
COTS. Commercial Off-the-Shelf, referring to readily available, commercial software
DRE. Direct (or Digital) Recording Electronic Voting System, a kind of voting
system where ballot choices a voter makes are recorded directly onto electronic media
rather than paper.
EAC. The federal Election Assistance Commission, a four-member, bipartisan
commission, established by HAVA, that replaced the former Office of Election
Administration in the Federal Election Commission.
FEC. The Federal Election Commission, which was responsible for federal guidance
and information relating to election administration before the enactment of HAVA.
FISMA. The Federal Information Security Management Act, first enacted as part of
the Homeland Security Act of 2002 (P.L. 107-292) and later in modified form in the
E-Government Act of 2002 (P.L. 107-347).
HAVA. The Help America Vote Act of 2002, which, among other things, established
the EAC, required it to develop the VVSG, and established a mechanism for that.
IDV. Independent Dual Verification refers to “electronic voting systems that produce
multiple [at least two] records of ballot choices whose contents are capable of being
audited to high levels of precision.”67
IEC. The International Electrotechnical Commission, a standards organization for
electrical, electronic and related technologies.
IEEE. The Institute of Electrical and Electronics Engineers, an international
professional organization that is also involved in the development of standards.
IESG. The Internet Engineering Steering Group is part of the Internet Society, a
professional organization. The IESG is responsible for the technical management of
66 “BIOS,” Webopedia, [http://www.webopedia.com/TERM/B/BIOS.html], n.d.
67 VVSG, Vol. 1, p. D-1.
IETF. The Internet Engineering Task Force, a community of professionals involved
in the evolution of Internet architecture, with the goal of improving Internet operations
through the development of standards, best practices, and other information.
ISO. International Organization for Standardization, a federation of the principal
standards bodies from countries around the world.
ITA. Independent Testing Authority, a laboratory accredited by NASED to perform
certification testing of voting systems.
LAN. Local-Area Network, referring to a computer network that spans a
comparatively small area, such as an office or building, as opposed to a wide-area
MTBF. Mean Time Between Failures, defined in the VVSG as “the value of the ratio
of the operating time [of a voting system] to the number of failures which have
occurred in the specified time interval.”68
NASED. The National Association of State Election Directors, a professional
association that, before HAVA, administered the national certification program for
NIST. The National Institute of Standards and Technology, required by HAVA to
provide assistance to the EAC in the development of the VSS and the process for
certification of voting systems.
NVLAP. The National Voluntary Laboratory Accreditation Program, a NIST program
involved in the identification and assessment of candidates testing laboratories for the
VVSG certification program.
OEA. The former Office of Election Administration within the FEC. OEA was
abolished upon the establishment of the EAC.
ROM. Read-Only Memory, a kind of computer memory in which data has been
prerecorded and which is retained when the computer is turned off. It often contains
small BIOS programs necessary to start the computer when power is turned on.69
TDP. Technical Data Package, the “vendor documentation relating to the voting
system required to be submitted with the system as a precondition of certification
TGDC. Technical Guidelines Development Committee, a 15-member committee
established by HAVA and chaired by the Director of NIST. The main function of the
TGDC is to make recommendations to the EAC on the VVSG.
68 VVSG, Vol. 1, p. 3-22.
69 See “ROM,” Webopedia, [http://www.webopedia.com/TERM/R/ROM.html], n.d.
70 VVSG, Vol. 1, p. A-30.
VSPR. Voting System Performance Rating, an independent project designed to
develop performance rating standards for U.S. voting systems.
VSS. The federal voluntary Voting Systems Standards (VSS) developed by the FEC.
VVPAT. Voter-Verified Paper Audit Trail, a printed record of all of a voter’s ballot
choices that the voter can review before the ballot is cast. This term is usually used
to refer to an IDV method used with DREs, rather than standard paper-based ballot
systems such as optical scan.
VVSG. The federal Voluntary Voting System Guidelines, developed by the EAC with
assistance from NIST, as required by HAVA.
WAN. A Wide-Area Network, referring to a computer network that spans a
comparatively wide geographic area, as opposed to a local-area network (LAN).