The Law of Church and State: General Principles and Current Interpretations







Prepared for Members and Committees of Congress



The First Amendment of the U.S. Constitution prohibits the government from establishing a
religion and guarantees citizens the right to freely exercise their religion. The U.S. Supreme Court
has clarified the scope of these broad guarantees. This report provides an overview of the
governing principles of the law of church and state. It explains the legal requirements for
challenges under the Establishment Clause and Free Exercise Clause and the standards used to
evaluate such challenges. The report includes current interpretations of these clauses and
summarizes related statutes (the Religious Freedom Restoration Act, or RFRA, and Religious
Land Use and Institutionalized Persons Act, or RLUIPA).






Alleged violations under the religion clauses must meet two threshold requirements: government
action and standing. In order to bring a claim to enforce rights provided by the religion clauses,
an individual must show that government action has interfered with those rights. In other words,
actions by private actors cannot violate the religion clauses.
The individual must also have standing. Cases brought under the religion clauses are governed by
general standing rules. Standing is the legal term used to indicate that the person has an 2
individualized interest that has actually been harmed under the law or by its application. For
instance, a person who has been barred by the government from attending religious services or
required by law to attend religious services would have standing because the individual has been
individually affected by the government’s action.
For some Establishment Clause cases, the Court has recognized special exceptions to the general 3
rules for standing. Generally, taxpayers do not have standing to sue the government on the 4
grounds that their tax money has been spent in a manner that they consider improper. The Court
has recognized an exception to this rule, known as the Flast exception. Under the Flast exception,
taxpayers may raise Establishment Clause challenges of actions taken by Congress under Article 5
I’s Taxing and Spending Clause. The Court has maintained its narrow interpretation of this
exception, refusing to extend it to permit taxpayer lawsuits challenging executive actions or 6
taxpayer lawsuits challenging actions taken under powers other than taxing and spending.
The Establishment Clause provides for separation of church and state, but advocates differ as to
the extent to which it requires such separation. Some argue that government and religion operate
best if each conducts its business independently of the other. Others argue that the drafters of the

1 This report provides a brief summary of the law of church and state. For more detailed analysis of church-state cases,
see CRS Report 98-65, The Law of Church and State: Developments in the Supreme Court Since 1980, by David M.
Ackerman, and CRS Report RL34223, The Law of Church and State: U.S. Supreme Court Decisions Since 2002, by
Cynthia Brougher.

2 See Valley Forge Christian College v. Americans United for Separation of Church and State, 454 U.S. 464, 472
(1982); Allen v. Wright, 468 U.S. 737, 751 (1984); Lujan v. Defenders of Wildlife, 504 U.S. 555, 560-61 (1992).
3 These exceptions, the Court has explained, result because the Establishment Clause is a constitutional limit on the
government’s ability to act. According to the Court, the framers of the Constitution feared abuse of governmental
power that might result in favoring one religion over another. See Flast v. Cohen, 392 U.S. 83, 103-04 (1968). It is
difficult to imagine circumstances in which potential abuses of the Establishment Clause could be enforced without this
exception.
4 See Frothingham v. Mellon, 262 U.S. 447, 487-88 (1923).
5 See Flast v. Cohen, 392 U.S. 83, 105 (1968).
6 See Valley Forge Christian College v. Americans United for Separation of Church and State, 454 U.S. 464 (1982)
(refusing to allow a taxpayer challenge of government transfer of property to a sectarian institution without charge
because the action was taken by an executive agency exercising power under the Property Clause); Hein v. Freedom
from Religion Foundation, 127 S. Ct. 2553 (2007) (refusing to allow a taxpayer challenge of activities of the White
House Office of Faith Based and Community Initiatives because the funding was made through discretionary executive
spending).





Constitution did not intend strict separation, and strict separation has not been practiced 7
throughout American history.
The primary test used to evaluate claims under the Establishment Clause is known as the tripartite
test, often referred to as the Lemon test. Under this test, a law (1) must have a secular purpose, (2)
must have a primary effect that neither advances nor inhibits religion, and (3) must not lead to 8
excessive entanglement with religion. Although the Lemon test is the one commonly employed
by the Court, it has been criticized by some Justices who have applied the test in different ways.
One application of the Lemon test focuses on whether the government has endorsed religion. The
government is prohibited “from making adherence to a religion relevant in any way to a person’s 9
standing in the political community.” This application of the Lemon test forbids “government
endorsement or disapproval of religion,” noting that “endorsement sends a message to
nonadherents that they are outsiders ... and an accompanying message to adherents that they are
insiders, favored members of the political community. Disapproval sends the opposite 10
message.”
Another application of the Lemon test focuses on neutrality as the governing principle in
Establishment Clause challenges. Under this interpretation, the essential element in evaluating
challenges under the Lemon test is whether or not the government act is neutral between religions 11
and between religion and non-religion.
In addition to the Lemon test, the Court has used two other tests to evaluate Establishment Clause
claims. The coercion test forbids the government from acting in a way that may coerce support or
participation in religious practices. This test is typically invoked in the school setting because of 12
the impressionability of those affected by possible acts of establishment. Another test permits
government acts that involve religion if the Court finds that the religious element has played a
part in the history of the nation, or as the Court has phrased it, has become “part of the fabric of 13
our society.”
When faced with issues regarding religious speech, the Court may also encounter free speech
claims under the First Amendment. As a general rule, the government may not limit religious
speech without a compelling reason or in a manner that is not viewpoint-neutral, but it may

7 For more on interpretations of the Establishment Clause, see CRS Report 98-65, The Law of Church and State:
Developments in the Supreme Court Since 1980, by David M. Ackerman.
8 Lemon v. Kurtzman, 403 U.S. 602, 612-13 (1971). While the first two prongs of the test are self-explanatory, the
Court noted that the third prong prohibited “an intimate and continuing relationship” between government and religion
as a result of the law. Id. at 621-22.
9 Lynch v. Donnelly, 465 U.S. 668, 687 (1984) (OConnor, J., concurring).
10 Id. at 688.
11 Epperson v. Arkansas, 393 U.S. 97, 103-04 (1968).
12 See Lee v. Weisman, 505 U.S. 577 (1992); Santa Fe Independent School District v. Doe, 530 U.S. 290 (2000).
13 Marsh v. Chambers, 463 U.S. 783, 792 (1983).





impose reasonable time, place, and manner restrictions.14 The Court has held that regulations that
broadly prohibit religious speech (e.g., prohibiting First Amendment activities in airports,
including a ban on distribution of religious literature, or requiring permits for all door-to-door 15
canvassing, including religious proselytizing) cannot be held constitutional.
The Court has held it unconstitutional to deny religious groups access to public facilities,
including public schools, if the same facilities are made available at similar times to nonreligious 16
groups. Such circumstances treat religious groups differently in a manner that suggests
disapproval of religion, in violation of the Establishment Clause. The Court interpreted this
requirement of equal access to include access to benefits offered by public institutions when it
required a public university to provide student activity funds to student groups regardless of the 17
religious content of the group’s activities.
The Court has applied a variety of tests in determining the constitutionality of religious displays
on public property, and its analysis in such cases is very fact-specific. Generally, the Court will
uphold displays that are set in a diversified religious context. For example, a display that included
Christian, Jewish, and nonreligious holiday elements at a government building has been held 18
constitutional, but a display of a Christian symbol by itself has been held unconstitutional. The
Court generally also will uphold religious displays that are given historical secular context. For
example, the Court has upheld a display of the Ten Commandments placed among dozens of
other secular historical monuments on the grounds of a state capitol for several decades, but held 19
a display that included the Ten Commandments among other religious items unconstitutional.
The Court has addressed the issue of prayer in schools by holding school-sponsored religious
activities unconstitutional. The First Amendment prohibits the legislature, teachers, and school

14 The Court has developed the notion of thepublic forum, i.e., that certain sites are by their nature and history
particularly appropriate for speech activities. See Hague v. CIO, 307 U.S. 496, 515 (1939) (Roberts, J., concurring);
Schneider v. State, 308 U.S. 147 (1939). It also posited that not all public properties are public forums: “The crucial
question is whether the manner of expression is basically incompatible with the normal activity of a particular place at
a particular time. Grayned v. City of Rockford, 408 U.S. 104, 116 (1972). In nonpublic fora, however, government
can impose regulations that are reasonable so long as the regulations are “not an effort to suppress expression merely
because public officials oppose the speakers view.” Perry Education Association v. Perry Local Educators
Association, 460 U.S. 37, 46 (1983).
15 See Board of Airport Commissioners of the City of Los Angeles v. Jews for Jesus, Inc., 482 U.S. 569 (1987);
Watchtower Bible & Tract Society of New York, Inc. v. Village of Stratton, 536 U.S. 150 (2002).
16 See Widmar v. Vincent, 454 U.S. 263 (1981); Westside Community Board of Education v. Mergens, 496 U.S. 226
(1990); Lambs Chapel v. Center Moriches Union Free School District, 508 U.S. 384 (1993); Good News Club v.
Milford Central School, 533 U.S. 98 (2001).
17 Rosenberger v. Rector and Visitors of the University of Virginia, 515 U.S. 819 (1995).
18 County of Allegheny v. American Civil Liberties Union Greater Pittsburgh Chapter, 492 U.S. 573 (1989).
19 See Van Orden v. Perry, 545 U.S. 677 (2005); McCreary County v. American Civil Liberties Union of Kentucky,
545 U.S. 844 (2005). See also Lynch v. Donnelly, 465 U.S. 668 (1984).





districts from initiating prayer during the school day or at school-sponsored events.20 The Court
has also struck down mandatory moments of silence if those moments are required for the 21
purpose of voluntary prayer. It also has held mandatory displays of the Ten Commandments in 22
schools and prohibitions on teaching evolution to be unconstitutional.
The permissibility of government aid to religious organizations generally depends on the purpose 23
for which the aid is distributed and the manner in which it is distributed. Generally, the
government may not provide direct aid to religious organizations that use the aid for religious
purposes, but the Court has allowed aid for non-religious purposes. The Supreme Court currently
interprets the Establishment Clause to permit public school teachers to provide remedial and
enrichment educational services to sectarian school children on the premises of the schools they 24
attend. It has held the use of federal funds to provide instructional materials and equipment to 25
public and private religious schools to be constitutional. The Court appears to have abandoned a
distinction it had previously recognized that prohibited public aid to “pervasively sectarian”
organizations, instead suggesting that the purpose of the aid and the types of programs that it was
used to fund are the critical factor in its analysis, not the type of organization that received and 26
administered the public funds.
If government aid is distributed in an indirect manner, i.e., if an individual uses funds received
from a federal agency to pay for some sectarian service, the Court has held the aid to be 27
constitutional when the distribution reflects the individual’s choice. In other words, if the
individual can be seen as intervening in the chain of distribution, the aid is considered to be the
individual’s, rather than the government’s, thereby negating a threat of establishment. The Court
has upheld aid programs in which the aid was distributed to the initial recipients on a religion-
neutral basis and the initial recipients had a “genuine choice among options public and private, 28
secular and religious.”

20 See Treen v. Karen B., 455 U.S. 913 (1982), aff’g mem., 653 F.2d 897 (5th Cir. 1981); Wallace v. Jaffree, 472 U.S.
38 (1984); Lee v. Weisman, 505 U.S. 577 (1992); Santa Fe Independent School District v. Doe, 530 U.S. 290 (2000).
21 Wallace v. Jaffree, 472 U.S. 38 (1984).
22 See Stone v. Graham, 449 U.S. 39 (1980); Epperson v. Arkansas, 393 U.S. 97 (1968); Edwards v. Aguillard, 482
U.S. 578 (1987).
23 The constitutionality of government aid to religious organizations has been of particular interest to Congress since
1996, when then-Senator John Ashcroft introduced Charitable Choice legislation that allowed religious organizations to
compete for federal funds in social programs. Under President Bush, the executive branch has continued the efforts that
began with this legislation under the Faith-Based Initiative. For more information on these issues, see CRS Report
RL32195, Charitable Choice: Legal and Constitutional Issues, by Angie A. Welborn.
24 See Agostini v. Felton, 521 U.S. 203 (1997).
25 Mitchell v. Helms, 530 U.S. 793 (2000).
26 Id. at 826-29.
27 See Mueller v. Allen, 463 U.S. 388 (1983); Zelman v. Simmons-Harris, 536 U.S. 639 (2002).
28 Zelman v. Simmons-Harris, 536 U.S. 639, 662 (2002).





For much of the second half of the 20th century, the Court had held that religious interests were to
be considered of paramount importance in the constitutional scheme. Under this interpretation,
any government act that infringed on religious practices of citizens had to serve a compelling 29
state interest.
In 1990, the Supreme Court significantly altered its interpretation of the Free Exercise Clause. It
abandoned the compelling state interest test (a strict scrutiny standard) with respect to neutral
statutes. The Court held that the Free Exercise Clause never “relieve[s] an individual of the 30
obligation to comply with a valid and neutral law of general applicability.” The constitutional
strict scrutiny standard was not abandoned entirely, though. It still applies to cases that involve
religious claims for exemption in programs allowing for individualized assessments and cases 31
that involve deliberate governmental targeting of religion.
A standard required by the Constitution is a baseline, which Congress may raise but can never
lower. In response to the Court’s reinterpretation of the standard necessary under the Free
Exercise Clause, Congress brought back the compelling interest test by statute. Congress sought
to broaden the legal protection afforded religious exercise with the Religious Freedom 32
Restoration Act (RFRA) of 1993, which prohibited government action that has the effect of
substantially burdening religious practice. RFRA provided that a statute or regulation of general
applicability could lawfully burden a person’s exercise of religion only if it were shown to further
a compelling governmental interest and to be the least restrictive means of furthering that 33
interest. This statutory requirement for any law, including those of general applicability not
aimed at religious practice, would supplement the constitutional protection, which prohibits only
government action that intentionally burdens the exercise of religion.
RFRA, when originally passed, applied to federal, state, and local government actions. In 1997,
the Court held that, because of federalism, Congress lacked the constitutional power to impose 34
such a sweeping requirement on states and localities. Therefore, the strict scrutiny standard
imposed by RFRA applies only to actions of the federal government. Congress responded to the
inapplicability of RFRA to state and local government by enacting the Religious Land Use and 35
Institutionalized Persons Act of 2000 (RLUIPA). To avoid the federalism problems presented by
RFRA, Congress limited the scope of RLUIPA’s application. RLUIPA applies only where the
burden could be linked to situations involving Congress’s spending power or commerce power, or

29 Sherbert v. Verner, 374 U.S. 398 (1963); Wisconsin v. Yoder, 406 U.S. 205 (1972).
30 Employment Div., Oregon Dep’t of Human Resources v. Smith, 494 U.S. 872, 879 (1990) (internal quotes omitted).
31 Id.
32 P.L. 103-141, 103rd Cong., 1st Sess. (November 16, 1993); 42 U.S.C. § 2000bb et seq.
33 P.L. 103-141, § 3; 107 Stat. 1488, 1488-89; 42 U.S.C. § 2000bb-1.
34 City of Boerne, Texas v. Flores, 521 U.S. 407 (1997).
35 P.L. 106-274, 106th Cong., 2nd Sess. (September 22, 2000); 114 Stat. 803; 42 U.S.C. §§ 2000cc et seq.





to situations involving land use in which individualized assessments are involved.36 Thus,
RLUIPA provides a statutory strict scrutiny test for state and local zoning and landmarking laws
that impose a substantial burden on an individual’s or institution’s exercise of religion and on
state and local actions that impair the religious practices of individuals in public institutions such 37
as prisons, mental hospitals, and nursing homes.

Cynthia Brougher
Legislative Attorney
cbrougher@crs.loc.gov, 7-9121


36 See id. at §§ 2(a)(2), 3(b).
37 P.L. 106-274, §§ 2-3; 114 Stat. 803, 803-04; 42 U.S.C. §§ 2000cc, 2000cc-1.