OPINION
Wе must decide whether the Supreme Court of Guam may interpret the Territory of Guam’s “Bill of Rights,” which is a federal statute, to allow greater religious freedom than that provided by the First Amendment to the federal Constitution.
I
Police officers of the Territory of Guam arrested Benny Toves Guerrero 1 at the Guam International Airport after they found five ounces of marijuana and ten grams of marijuana seeds in his belongings. He was duly indicted under Guam’s statutes criminalizing the importation of controlled substances. 9 Guam Code Ann. §§ 67.23(d)(10), 67.89(a), 80.33.7. Guerrero moved to dismiss his indictment on the ground that the statutes violated his right freely to exercise his religion — Rastafarianism—under the Organic Act of Guаm (“Organic Act”), 48 U.S.C. §§ 1421 et seq., and the Religious Freedom Restoration Act (“RFRA”), 42 U.S.C. §§ 2000bb et seq.
The Superior Court of Guam found, and the government does not dispute, that Rastafarianism is a legitimate religion 2 of *1213 which Guerrero is a legitimate member. People v. Guerrero, No. CF0001-91, at 4 (Sup.Ct. Guam July 23, 1999). It also found that marijuana use is sacramental in the practice of that religion. Id. Using RFRA’s standard — namely, a law of general applicability that substantially burdens the free exercise of religion is invalid unless the government demonstrates that the law is the least restrictive means of vindicating a compelling government interest — the trial court found that the government had alleged neither a compelling interest nor that its drug laws were the least restrictive means of carrying out their purpose. Id. at 5-6. As such, the trial court held that the importation statute, as applied to Guerrero, violated both RFRA 3 and the Free Exercise Clause of the Organic Act, 48 U.S.C. § 1421b(a).
The Supreme Court of Guam affirmed based solely on its interpretation of the Organic Act. While it discussed whether RP’RA was constitutional as applied to Guam as a federal instrumentality, its decision was based on its own interpretation of § 1421b(a).
People v. Guerrero,
Applying this compelling interest test, the Supreme Court of Guam held that Guam’s controlled substance statute substantially burdened Guerrero’s right freely to exercise his religion. Id. at *6. It went on to conclude that the government had not demonstrated that its statute was necessary for the pursuit of a compelling state interest: “The issue then is whether some compelling government interest exists and whether the least restrictive means of obtaining that objective are used. No evidence on this scоre was presented.... [T]his court is unable to make the evaluation of whether a compelling state interest is embodied in the instant statute or whether that interest is achieved by the least restrictive means.” Id.
The Guam Supreme Court thus affirmed the trial court and held that Guam’s prosecution of Guerrero violated his right freely to exercise his religion as guaranteed by § 1421b(a) of the Organic Act. We granted Guam’s timely petition for a writ of certiorari pursuant to 48 U.S.C. § 1424-2.
II
Because we are reviewing a decision of a territorial supreme court that interpreted a federal statute, our standard of review is de novo.
Gutierrez v. Pangelinan,
Ill
The United States formally acquired Guam from Spain in 1899 after the Spanish-American War, and, with the exception of a three-year Japanese occupation during World War II, it has remained in the United States’s possession since that time. Until 1950, Guam was controlled by the U.S. Navy, with vast authority wielded by an appointed governor.
Guam remains an unincorporated territory of the United States, 48 U.S.C. § 1421a, subject to the plenary power of Congress.
Guam v. Okada,
In response to renewed petitions of Guam’s inhabitants, Congress enacted the Organic Act of 1950, 48 U.S.C. § 1421 et seq., which, inter alia, established a “Bill of Rights” modeled after the Bill of Rights in the federal Constitution, 48 U.S.C. § 1421b. 6 The language of the Free Exercise Clause of the Organic Act, 48 U.S.C. § 1421b(a), is virtually identical to its federal counterpart: “No law shаll be enacted in Guam respecting an establishment of religion or prohibiting the free exercise thereof....” Id.
Later, in 1968, Congress enacted 48 U.S.C. § 1421b(u), known as the Mink Amendment, which extended certain constitutional rights to Guam “to the extent that they [had] not been previously extended” and provided that those rights “shall have the same force and effect [in Guam] as in the United States or in any State of the United States.” Id. (emphasis added). 7
*1215 The thorny question we must decide is whether- § 1421b(a) is. analogous to the free exercise provisions found in many state constitutions that state supreme courts are free to interpret as providing more protection than that given by the federal constitution. Indeed, many states have in fact рrovided more protection to religious freedom, even when their state free exercise clause is similarly or identically worded to its federal counterpart. 8 Therefore, we must decide whether the rights established in the federal Constitution are a ceiling beyond which the Supreme Court of Guam cannot exceed when it is interpreting its “Bill of Rights.”
A
The First Amendment to the U.S. Constitution provides that “Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof.” U.S. Const. amend. I. In
Employment Division, Department of Human Resources v. Smith,
The parallels of Smith to this case are striking. Like Smith, Guerrero used a controlled substance in the practice of his religion, 9 and Guam has a neutral, generally applicable law proscribing the importation of such controlled substance. Under Smith, then, Guam may constitutionally *1216 punish Guerrero for importing a controlled substance, even if doing so substantially burdens his ability to practice his religion.
B
Our inquiry does not end at Smith, however, because we must decide whether the Supreme Court of Guam was within its authority to interpret § 1421b(a) as providing more protection for religious freedom than its federal counterpart. If so, then we allow the territorial court’s decision to stand. If'not, then we must reverse, as Smith would be the applicable standard.
The Supreme Court of Guam interpreted § 1421b(a) to provide the level of free exercise protection found in the U.S. Supreme Court’s
Sherbert
decision — namely, a law that substantially burdens the free exercise of religion must be justified by a compelling government interest and must burden no more religious exercise than necessary to achieve that interest.
Sherbert,
Guerrero argues that the Supreme Court of Guam was well within its authority to interpret § 1421b(a) differently than the U.S. Supreme Court’s interpretation of the federal Free Exercise Clause. His argument is premised on the structure of § 1421b itself, which, he believes, provides two layers of constitutional rights — a territorial bill of rights, subject to final construction by the Supreme Court of Guam, and a federаl Bill of Rights, subject to final construction by the U.S. Supreme Court. To Guerrero, subsection (u) of the Mink Amendment extends to the people of Guam rights found in the
federal
constitution — it is a floor below which the Guam legislature cannot dip — whereas subsection (a) is analogous to a free exercise clause found in a state constitution that the Supreme Court of Guam may interpret more broadly.
See Guam Soc’y of Obstetricians & Gynecologists v. Ada,
Of course, Guam is not a state, has no locally adopted constitution, and its “Bill of Rights” was passed not by its citizens, but rather by Congress. While § 1421b might function as a constitution,
Haeuser v. Dep’t of Law,
This principle is not newly minted. As far back as 1904, the U.S. Supreme Court recognized that local courts in the Philippines, which was then under the control of a U.S. military government, could not interpret the double jeopardy clause in the statutory bill of rights enacted by Congress for the Philippines differently than the construction given by the U.S. Supreme Court to its analogous provision in the Fifth Amendment of the federal Constitution.
Kepner v. United States,
The Court said:
These words [in the Philippines’s statutory bill of rights] are not strange to the American lawyer or student of constitutional history. They are the familiar language of the Bill of Rights, slightly changed in form, but not in substance, as found in the first nine amendments to the Constitution ....
How can it be successfully maintained that these expressions of fundamental rights, which have been the subject of frequent adjudication in the courts of this country, and the maintenance of which has been ever deemed essential to our government, could be used by Congress in any other sense than that which has been placed upon them in construing the instrument from which they were taken?
Id. (emphasis added).
The U.S. Supreme Court reaffirmed this principle only six years later in
Weems v. United States,
This principle was implicit in our decision in
Ada,
where we held that the Fourteenth Amendment’s due process guarantee applied to Guam with the “same force and effect” as it has in the United States or the several States.
As such, it was error for the Supreme Court of Guam to conclude that “[djespite the similarity of the two provisions, this court can reach its own conclusions on the scope of the protections of section 1421b(a) and may provide broader rights than those which have been interpreted by federal courts under the United States Constitution.”
Guerrero,
IV
Because we cоnclude that the Supreme Court of Guam exceeded its authority by interpreting § I421b(a) as providing rights of free exercise greater than those found in the federal Constitution, we next consider whether RFRA, which provides a level of protection to religious exercise beyond that which the First Amendment requires, is constitutional as applied to Guam, a federal instrumentality. 12
A
RFRA requires that a law that works a substantial burden on an individual’s ability freely to exercise his religion must be justified by a compelling government interest and achieve that interest by burdening as little religious freedom as possible. 42 U.S.C. § 2000bb 1(b). 13 In essence, RFRA re-establishes the Sherbert standard that the U.S. Supreme Court supplanted in Smith. 14 , Congress itself said as much, declaring its purpose in enacting RFRA:
*1219 [T]o restore the compelling interest test as set forth in Sherbert v. Verner ... and to guarantee its application in all cases where free exercise of religion is substantially burdened; and ... to provide a claim or defense to persons whose religious exercise is substantially burdened by government. 42 U.S.C. § 2000bb(b).
This is essentially the same standard that the Supreme Court of Guam applied in interpreting § 1421b(a) of the Organic Act, which, it held, the government could not meet. Guerrero asserts that RFRA is not only constitutional as applied to Guam, but also that Guam’s drug statute created a substantial burden on his ability freely to exercise his religion that was unsupported by a compelling government interest.
B
The U.S. Supreme Court declared RFRA unconstitutional .as applied to the States because Congress exceeded its remedial authority under section 5 of the Fourteenth Amendment.
15
City of Boerne v. Flores,
Of course, Cоngress uses its enumerated powers in Article I, not its Fourteenth Amendment enforcement authority, when it regulates for the federal sphere. Therefore,
Boeme
does not speak to the question before us.
Worldwide Church of God v. Phila. Church of God, Inc.,
Nevertheless, Guam argues that
Boeme’s
sweeping language and the Court’s decision in
Dickerson v. United States,
In
Dickerson,
the Court again rejected Congress’s reading of the Constitution, there the Fifth Amendment right against self-incrimination. The Court found unconstitutional a federal statute passed after
Miranda v. Arizona,
U.S. at 432,
Here, Guam argues that the same rationale should apply to RFRA, even when applied to federal instrumentalities, because RFRA still effects a substantive change in a constitutional right and, in Smith, supplants a constitutional interpretation of the U.S. Supreme Court. We decline to read Boeme and Dickerson so broadly and, consistent with Sutton, hold that Boeme does not control our analysis.
C
We have not definitively held RFRA constitutional as applied in the federal realm.
17
We have assumed, without deciding, that it is.
See Worldwide Church,
The Tenth and the Eighth Circuits have upheld Congress’s Article I power to enact RFRA for the
federal
realm.
Kikumura,
Likewise, we do not see how, by enacting RFRA for the federal sphere, Congress violates the separation of powers doctrine. The sweeping language used in
Boeme
derived from the Court’s discussion of Congress’s exercise of its Fourteenth Amendment enforcement authority,
see Kikumura,
In
Kikumura,
the Tenth Circuit held that RFRA, as applied to the federal government, did not violate the separation of powers doctrine.
D
Having concluded that RFRA is constitutional as applied in the federal sphere, we must next decide whether it is constitutional as applied to a federal instrumentality such as Guam. In its original form, RFRA expressly applied to Guam.
See
42 U.S.C. § 2000bb 2(2). Congress’s plenary authority over the territories, probably derived from the Territorial Clause, U.S. Const, art. IV, § 3, has long been settled.
See, e.g., First Nat’l Bank v. County of Yankton,
E
Having decided that RFRA is constitutional as applied to Guam, finally, we must ask whether Guerrero has established a prima facie claim of a RFRA violation. RFRA provides that “[gjovernment shall not substantially burden a person’s exercise of religion.” 42 U.S.C. § 2000bb-l(a). To establish a prima facie case, Guerrero must show that the statute at issue works a substantial burden on his ability to freely practice his religion.
See Kikumura,
A statute burdens the free exercise of religion if it “put[s] substantial pressure on an adherent to modify his behavior and to violate his beliefs,”
Thomas v. Review Bd. of Ind. Employment Sec. Div.,
This court has previously addressed the distinction between possession of a con
*1223
trolled substance and possession with intent to distribute. In
Bauer,
we held that the defendant could use RFRA to defend against his prosecution for simple possession of marijuana, but not against the charges of conspiracy to distribute and possession with intent to distribute.
V
The Supreme Court of Guam exceeded its authority by interpreting § 1421b(a) as providing greater religious freedom than that bestowed by the federal Constitution. RFRA, as applied to Guam, is a constitutional exercise of Congress’s Article I powers, yet provides no defense to Guerrero, who was prosecuted for importation of marijuana, not simple possession.
REVERSED.
Notes
. Guerrero has chosen to use his Rastafarian name, Iyah Ben Makahna, for over the past 20 years. Because the case caption uses his birth name, however, this opinion will also.
. We have previously acknowledged that Ras-tafarianism is a legitimate religion, in which marijuana plays a necessary and central role.
See United States v. Bauer,
. The trial court held that RFRA was constitutional as applied to Guam because the territory is a federal instrumentality. Guerrero, No. CF0001-91, at 4-5.
.
See Sherbert v. Verner,
. Since 1972, Guam has also been represented by an elected, non-voting Delegate in the U.S. House of Representatives. 48 U.S.C. § 1711.
. Guam's “Bill of Rights” is pаtterned after, but not identical to, the federal Bill of Rights. For example, in § 1421b there is no equivalent to the Second Amendment, Fifth Amendment grand jury indictment guarantee, or the Sixth and Seventh Amendment rights to a trial by jury. Furthermore, Guam's "Bill of Rights” contains provisions not found in the federal Bill of Rights. See, e.g., § 1421(n) (proscribing discrimination on the basis of race, language, or religion); § 1421b(q) (prohibiting employment of children under the age of fourteen years in any occupation injurious to health); § 1421(r) (requiring compulsory education for all children between the ages of six and sixteen years).
.The Mink Amendment, subsection (u), extended the following federal constitutional rights to Guam: "article I, section 9, clausеs 2 and 3; article IV, section 1 and section 2, *1215 clause 1; the first to ninth amendments'inclusive; the thirteenth amendment; the second sentence of section 1 of the fourteenth amendment; and the fifteenth and nineteenth amendments.” 48 U.S.C. § 1421b(u).
.
See, e.g., Swanner v. Anchorage Equal Rights Comm’n,
. We dо not pass on the importance of marijuana to Guerrero’s religion.
See Smith,
.
Ada
is consistent with Guerrero's argument because there Guam attempted unconstitutionally to limit a woman’s right to choose to have an abortion, contravening the holding of
Roe v. Wade,
. Guerrero argues that our reading will render provisions of the Organic Act's "Bill of Rights” redundant and superfluous. If subsection (u) was merely extending rights that had not previously been extended, and subsection (a) already provided the federal level of free exercise protection, why did Congress mention the First Amendment again in subsection (u)? Thus, he argues, the free exercise portions of subsections (a) and (u) must be subject to different interpretations. Or, put differently, Congress provided Guam two layers of religious protection, one federal and one subject to local interpretation that cannot fall beneath the floor of federally protected rights. While Guerrero’s reading is not unreasonable, we find that the interplаy of subsections (a) and (u) is less convoluted. Had Congress wanted to add a separate layer of constitutional protections, simpler language would have sufficed, for example, "in addition” or "also.” In any case, subsection (u) adds only those provisions not already extended. Therefore, if a provision had been extended, like free exercise of religion, it was not duplicated by subsection (u).
. Despite discussing the constitutionality of RFRA as applied to Guam, the Supreme Court of Guam based its decision on its interpretation of § 1421b(a). Nevertheless, we address the RFRA question because it is a legal question of constitutional interpretation that was presented to both the Supreme Court and Superior Court of Guam, the latter deciding that RFRA was constitutional as applied to Guam,
Guerrero,
No. 0001-91, at 4-5, and the former engaging in an analysis of the issue,
Guerrero,
. 42 U.S.C. § 2000bb 1(b) provides in full:
Government may substantially burden a person’s exercise of religion only if it demonstrates that application of the burden to the person—
(1) is in furtherance of a compelling governmental interest;
(2) is the least restrictive means of furthering that compelling governmental interest.
. Indeed, as the U.S. Supreme Court noted, "Congress enacted RFRA in direct response to the Court's decision in
[Smith].” City of Boerne v. Flores,
. The Fourteenth Amendment provides, in relevant part:
Section 1.... No State shall make or enforce any law which shall abridge the рrivileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
Section 5. The Congress shall have power to enforce, by appropriate legislation, the provisions of this article.
U.S. Const, amend. XIV, §§ 1, 5.
. We note that in Dickerson, Congress passed a statute that sought to remove constitutional protection, while RFRA seeks to provide additional protection. As the Eighth Circuit noted,
Congress has often provided statutory protection of individual liberties that exceed the Supreme Court’s interpretation of constitutional protections....
The key to the separation of powers issue ... is thus not whether Congress disagreed with the Supreme Court’s constitutional analysis, but whether Congress acted beyond the scope of its constitutional authority in applying RFRA to federal law.
Christians,
. We have held, however, that application of RFRA to the federal government is severable from its unconstitutional application to the States.
Sutton,
. We see no relevant distinction between Congress’s ability to legislate in a wholesale manner to protect the exercise of religion, as it did with RFRA, and carving out exemptions on a statute-by-statute basis.
. That Congress originally defined the term "State” to include Guam, 42 U.S.C. § 2000bb 2(2), does not change our analysis. Congress fnost likely drafted the provision to ensure that RFRA would cover territories beforе Boeme held RFRA inapplicable to the States. Post-Boeme, Congress amended RFRA by substituting the phrase "covered entity” for "State” to clarify its intent that RFRA remain in force as to federal instrumentalities. Religious Land Use and Institutionalized Persons Act of 2000, § 7, 114 Stat. 803 (2000) (codified at 42 U.S.C. § 2000bb 2(2)). In any case, that Congress chose to call Guam a “State” for purposes of RFRA does not change the fact that Guam is still a territory.
. Despite Guerrero’s assertion to the contrary, we do not believe that Guam waived this argument, nor did Guam concede that a substantial burden existed. The Superior Court of Guam declined to discuss the distinction between possession and importation,
Guerrero,
No. 0001-91, at 3 n. 1 ("This Court will not involve itself in the mental task of finding it legal for onе to possess marijuana, but then be prevented from having any reasonable means to acquire it.”), and Guam clearly raised the distinction in its opening brief to the Supreme Court of Guam. Furthermore, even if Guam had made this concession, we are not bound by legal concessions or stipulations made by the parties.
See Avila v. INS,
