50 CFR § 27.82 - Possession and delivery of controlled substances.

---
identifier: "/us/cfr/t50/s27.82"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "50 CFR § 27.82 - Possession and delivery of controlled substances."
title_number: 50
title_name: "Wildlife and Fisheries"
section_number: "27.82"
section_name: "Possession and delivery of controlled substances."
chapter_name: "UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "THE NATIONAL WILDLIFE REFUGE SYSTEM"
part_number: "27"
part_name: "PROHIBITED ACTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 685, 752, 690d; 16 U.S.C. 460k, 460-6d, 664, 668dd, 685, 690d, 715i, 715s, 725; 43 U.S.C. 315a."
regulatory_source: "41 FR 9168, Mar. 3, 1976, unless otherwise noted."
cfr_part: "27"
---


# 27.82 Possession and delivery of controlled substances.

(a) Definitions for the purpose of this section:

(1) The term *controlled substance* means a drug or other substance, or immediate precursor, included in schedules I, II, III, IV, or V of part B of the Controlled Substance Act (21 U.S.C. 812) or any drug or substance added to these schedules pursuant to the terms of the Controlled Substance Act.

(2) The term *practitioner* means a physician, dentist, veterinarian, scientific investigator, pharmacist, or other person licensed, registered, or otherwise permitted by the United States or the jurisdiction in which he practices to distribute or possess a controlled substance in the course of professional practice.

(3) The term *delivery* means the actual, attempted or constructive transfer and/or distribution of a controlled substance, whether or not there exists an agency relationship.

(b) Offenses. (1) The delivery of any controlled substance on a national wildlife refuge is prohibited, except that distributed by a practitioner in accordance with applicable law.

(2) The possession of a controlled substance on a national wildlife refuge is prohibited unless such substance was obtained by the possessor directly, or pursuant to a valid prescription or order, from a practitioner acting in the course of his professional practice, or except as otherwise authorized by applicable law.

(3) Presence in a national wildlife refuge when under the influence of a controlled substance to a degree that may endanger oneself, or another person, or property, or may cause unreasonable interference with another person's enjoyment of a national wildlife refuge is prohibited.