RFRA and Psychedelics: Religious Exemptions Explained

What RFRA is and how it works

The Religious Freedom Restoration Act of 1993 (P.L. 103-141, codified at 42 U.S.C. §§ 2000bb–2000bb-4) is a federal law that bars the government from substantially burdening a person's sincere religious exercise unless it can satisfy a two-part test.

Congress passed RFRA in direct response to the 1990 Supreme Court decision Employment Division v. Smith, which held that neutral, generally applicable laws — like drug prohibitions — do not violate the First Amendment even when they burden religious practice. RFRA restored a higher standard.

Under 42 U.S.C. § 2000bb-1(b), the government must show two things to override a religious exemption claim: first, that applying the law furthers a compelling governmental interest; second, that the law is the least restrictive means of furthering that interest. Both prongs must be satisfied. If the government fails either, the religious practice wins.

Why RFRA applies to federal drug law

The Controlled Substances Act is a federal law. RFRA applies to all federal statutes. Any person or organization — a church, a congregation, an individual practitioner — can invoke RFRA as a defense if the government tries to prosecute them for using a controlled substance as part of a sincere religious ritual.

RFRA can work two ways: as a defense in a criminal prosecution, or as the basis for a petition asking the DEA to grant a pre-emptive exemption before any charges are filed. The pre-emptive petition route was formalized in 2009 DEA guidance. The defensive route can be raised in any federal court.

The O Centro ruling: the key precedent

Gonzales v. O Centro Espírita Beneficente União do Vegetal, 546 U.S. 418 (2006), is the controlling Supreme Court case on RFRA and psychedelic substances.

The União do Vegetal (UDV) is a Brazilian religious organization that uses hoasca — an ayahuasca tea containing DMT, a Schedule I controlled substance — as its central sacrament. In 2000, US Customs agents seized the church's supply in New Mexico. The UDV sued under RFRA, seeking an injunction against future seizures.

The Supreme Court ruled 8-0 in the UDV's favor on February 21, 2006. Chief Justice John Roberts wrote the opinion. The Court held that the government failed to demonstrate a compelling interest sufficient to override the church's sincere religious practice. The government's arguments — that the CSA's Schedule I classification itself constituted a compelling interest, and that the regulatory scheme required uniform enforcement — were not enough. Roberts noted that the CSA already carved out an exception for the Native American Church's peyote use, undermining any claim that the government treats all Schedule I substances identically.

What O Centro established

The ruling required the DEA to provide the UDV an exemption. More broadly, it set the rule that courts must apply RFRA's compelling-interest test on an individualized basis — the government cannot simply point to a substance's Schedule I classification and stop there. It must show a specific, concrete harm that outweighs the religious burden in that case.

O Centro is the reason every serious RFRA psychedelic claim since 2006 cites the case. It moved RFRA from a theoretical tool to a proven legal pathway — at least for ayahuasca-using religious organizations that can show sincere, organized religious practice. For more on the case itself, see our dedicated O Centro case guide.

The DEA petition process

The DEA formalized a non-litigation route in 2009 when it published its Guidance Regarding Petitions for Religious Exemption from the Controlled Substances Act Pursuant to the Religious Freedom Restoration Act (updated November 2020).

To file a Petition for Religious Exemption (PRE), an organization must submit a detailed package. The DEA guidance requires:

• A complete history and description of the religion — its origins, beliefs, and structure.
• A detailed account of the specific religious practice involving the controlled substance.
• Documentation of how and when the substance is used, how it is stored, and what controls are in place.
• The petitioner's declaration, signed under penalty of perjury, that all information is true.

There is one procedural trap that legal observers consistently flag: the DEA requires petitioners to disclose past illegal drug activity in the petition. There is no statutory immunity for this disclosure. A petitioner who admits past use of DMT or psilocybin could, in theory, face prosecution on the basis of that admission. The 2024 GAO report on the DEA's exemption process confirmed that the DEA provides no formal protection against self-incrimination in the petition process.

What the GAO found in 2024

A 2024 Government Accountability Office report (GAO-24-106630) reviewed the DEA's religious exemption process and found serious structural problems. Between fiscal year 2016 and January 2024 — an eight-year window — the DEA received 24 petitions for religious exemptions from controlled substances. None were voluntarily granted. Six petitions involved psilocybin; of those, three were withdrawn and three remained pending as of January 2024.

The GAO found that the DEA had no defined timeline for processing petitions. One petition had been pending for nearly eight years. The GAO recommended that the DEA establish clear timelines and improve transparency. The DEA acknowledged the recommendations.

The DEA also requires petitioners to stop using the controlled substance while their petition is under review — meaning a church must suspend its central sacramental practice indefinitely, with no assurance of a decision date, just to apply. Legal critics argue this structural design makes the petition route all but unusable without independent wealth and a high legal risk tolerance. Track current regulatory movements at the Psychedelic Legalization Tracker.

Church of Gaia: the first voluntary exemption

In May 2025, the DEA granted its first-ever voluntary religious exemption for ayahuasca to the Church of Gaia, a 65-member church based in Spokane, Washington.

The Church of Gaia filed its petition and — critically — agreed to suspend its sacramental ayahuasca use while the DEA reviewed the application. The process took nearly three years from filing to the May 16, 2025 approval. The church's legal team, attorneys Pat Donahue and Taylor Loyden of Terrapin Legal, negotiated conditions and documentation with the DEA throughout the review.

The Church of Gaia result is significant because it shows the petition route can work without suing the DEA — but it also illustrates the cost: years of suspension of religious practice, substantial legal fees, and a 65-member congregation willing to wait. Large, organized churches with legal resources are better positioned to succeed. Smaller or less formal groups face far higher practical barriers.

RFRA vs. the Native American Church exemption

The Native American Church's right to use peyote in religious ceremonies is protected by a different and stronger legal source than RFRA.

Congress enacted the American Indian Religious Freedom Act Amendments of 1994 (P.L. 103-344), codified at 42 U.S.C. § 1996a. The DEA then codified its implementing exemption at 21 CFR § 1307.31. Together, these give enrolled members of federally recognized tribes an explicit statutory right to use peyote in bona fide traditional ceremonies. No compelling-interest test is required. No petition to the DEA is necessary. State drug laws cannot override this federal protection.

RFRA, by contrast, is a process: it gives religious organizations a legal tool to challenge government action, but they must win that challenge — either in court or through the DEA petition process — before they are protected. The table below shows the key differences.

For a deeper look at the peyote exemption's history and the Employment Division v. Smith ruling that preceded it, see our guides on AIRFA and the peyote amendment and peyote use and legal status.

Post-O Centro court decisions

After O Centro, several additional court decisions shaped how RFRA applies to religious psychedelic use.

The most significant is Church of the Holy Light of the Queen v. Mukasey, in which a Santo Daime church in Oregon also won protection for sacramental ayahuasca use. The Ninth Circuit extended O Centro's reasoning to cover this church, confirming that the ayahuasca exemption is not limited to the UDV. The ayahuasca guide covers the religious exemption landscape in more detail.

No federal circuit court has yet extended RFRA protection to cover psilocybin, MDMA, or LSD in a religious context. The three pending psilocybin petitions reported by the GAO in January 2024 remain the only formal test of whether psilocybin-based churches can win voluntary DEA exemptions under RFRA. For a broader view of where psilocybin stands legally, see our guide on where magic mushrooms are legal and the legal status by state tool.

What courts look for after O Centro

Courts applying RFRA post-O Centro focus on two questions. First: is the belief sincerely held and religious in nature? Courts do not evaluate whether the religion is theologically correct — only whether the belief is genuine. Second: does the government have a compelling interest that outweighs the burden in this specific case?

The DEA has argued national drug-control uniformity as a compelling interest. Courts have rejected this argument when a specific-substance exemption already exists (like peyote for the NAC) or when the government cannot show concrete evidence of harm from the specific religious group's use. Abstract appeals to general enforcement uniformity have not held up under O Centro's individualized analysis.

This is the core legal dynamic for any new RFRA claim over psychedelics — whether for DMT, psilocybin, or other substances. See the guide to legal psychedelics in the US for the full access landscape.

The limits of RFRA protection

RFRA does not create a blanket right to use any psychedelic for any religious reason. Several limits apply even after a group wins an exemption.

• Exemptions are group-specific. A court order or DEA exemption for one church does not automatically protect another church with similar practices. Each group must establish its own claim.
• Only religious use is covered. An exemption applies to bona fide religious ceremonies, not to personal recreational use. Courts look at whether the practice is genuinely religious, organized, and consistent.
• State law is separate. RFRA is a federal statute. A DEA religious exemption does not automatically protect a church from state drug prosecution. Some states have their own RFRA-equivalent statutes; others do not.
• Scheduling still applies to everyone else. DMT and psilocybin remain Schedule I federally. An exemption is a narrow carve-out, not a change in law. For those outside the exemption, all CSA penalties apply. See the Controlled Substances Act guide for the full scheduling framework.
• The DEA can impose conditions. DEA exemptions typically require controls: record-keeping, security, registered storage, and regular reporting. The Church of Gaia's 2025 exemption includes conditions; their scope has not been publicly disclosed in full.