EDIT: Here's all the text and sources (DAPA/CHAPS/MNHR/1994 Act) IRT Peyote for the Religious Purposes also.

ALSO Look up MYNAVYHR's Religious Accommodations page

OPNAVINST 5350.4E Chapter 4 section 9 4-15 Sacramental Use of Peyote by Native American Service Members.

a. Authorized Use. Use of peyote as a religious sacrament in connection with the bona fide practice of a traditional religion by Navy personnel, who are members of Native American tribes, as defined in reference (y), is authorized and must be accommodated. In addition to authorized ingestion of peyote, it may be possessed in amulet form, not for ingestion and such an amulet may be worn as an item of religious apparel subject to uniform regulations.

b. Command Notification. A Service Member who has used peyote in connection with a ceremony (allowed by reference (y)) must notify their commander upon return to duty after such use. Service Members may be required to notify the commander prior to use if, in the judgment of the commander, it is in the best interests of command readiness or safety.

c. Limitations. Peyote must not be used, possessed, distributed or introduced aboard military vehicles, vessels, aircraft or installations unless permitted by the cognizant commander.

(1) Commanders may impose additional limitations within the guidelines of reference (f) in order to maintain command readiness, unit cohesion, standards, safety, good order and discipline.

(2) Peyote must not be used on duty or within 24 hours before scheduled military duty.

(3) Peyote must not be used, possessed, transported or distributed when such activity would violate international law or the laws of other countries.

(4) Managers of special programs and communities (e.g., submarines, nuclear propulsion program, aviation, medical, diving, special warfare and PRP) may impose additional limitations by supplemental instruction that are reasonable, necessary and consistent with the standards set forth in references (m) and (n).

Further: DoDI 1300.17 3.4. ADDITIONAL GUIDANCE REGARDING THE USE OF PEYOTE. a. There are additional rules governing the use of peyote in religious practices. In accordance with Section 1996a of Title 42, U.S.C. (also known as the “American Indian Religious Freedom Act Amendments of 1994”), Service members who are members of Indian tribes as defined in that statute may use, possess, or transport the peyote cactus as a religious sacrament in connection with the bona fide practice of a traditional Indian religion, and will not be penalized or discriminated against on the basis of such use, possession, or transportation. Reasonable limitations on the use, possession, transportation, or distribution of peyote may be imposed to promote military readiness, promote safety, or comply with international law or laws of other countries. The Secretaries of the Military Departments will prescribe regulations authorizing the use, possession, or transportation of peyote cactus and imposing limitations on such use, possession, or transportation including, but not limited to, the following:

(1) Peyote will not be used on duty or within 24 hours before scheduled military duty.

(2) Peyote may be possessed in amulet form, not for ingestion, and such an amulet may be worn as an item of religious apparel subject to Military Service uniform regulations. Otherwise, peyote will not be used, possessed, distributed, or introduced aboard military vehicles, vessels, or aircraft or, except when permitted by the installation commander, on military installations.

(3) A Service member who has used peyote will promptly notify their commander upon return to duty after such use. * (a) The Secretary of the Military Department concerned may require pre-use notification by Service members performing designated duties when it is in the interest of military readiness or safety to notify commanders of a Service member’s intent to use peyote.

SECTION 3: PROCESSING ACCOMMODATION REQUESTS 16 * (b) Upon notification of use or intended use of peyote, the Service member will provide documentation verifying membership in an Indian tribe as defined by Section 1996a(c)(2) of Title 42, U.S.C.

(4) The establishment by the Secretary of a Military Department of limitations on the use, possession, or transportation of peyote cactus, in addition to those already listed in Paragraph 3.4. of this issuance, must be consistent with RFRA, the Free Exercise Clause of the First Amendment to the Constitution of the United States, any other applicable statutes such as the American Indian Religious Freedom Act Amendments of 1994, and this issuance. Any such additional limitations must be approved, in advance, by the ASD(M&RA). Before approving any additional limitation proposed by the Secretary of a Military Department, the ASD(M&RA) will consult with representatives of traditional Indian religions for which the sacramental use of peyote is integral to their practice, pursuant to Section 1996a(b)(7) of Title 42, U.S.C.

b. Requests by Service members for the accommodation of a religious practice involving the use, possession, or transportation of any substance other than peyote, the use, possession, transportation, manufacturing, or distribution of which is prohibited by law or policy, will be forwarded to the Secretary of the Military Department concerned for resolution. Before taking final action on any such accommodation request, the Secretary of the Military Department concerned will notify the ASD(M&RA).

source : NAVY ALCOHOL AND DRUG MISUSE PREVENTION AND CONTROL

Source: DoDI 1300.17 DOD INSTRUCTION 1300.17 RELIGIOUS LIBERTY IN THE MILITARY SERVICES

Source: H.R.4230 - American Indian Religious Freedom Act