10 CFR § 40.3 - License requirements.

---
identifier: "/us/cfr/t10/s40.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 40.3 - License requirements."
title_number: 10
title_name: "Energy"
section_number: "40.3"
section_name: "License requirements."
chapter_name: "NUCLEAR REGULATORY COMMISSION"
part_number: "40"
part_name: "DOMESTIC LICENSING OF SOURCE MATERIAL"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Atomic Energy Act of 1954, secs. 62, 63, 64, 65, 69, 81, 83, 84, 122, 161, 181, 182, 183, 184, 186, 187, 193, 223, 234, 274, 275 (42 U.S.C. 2092, 2093, 2094, 2095, 2099, 2111, 2113, 2114, 2152, 2201, 2231, 2232, 2233, 2234, 2236, 2237, 2243, 2273, 2282, 2021, 2022); Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); Uranium Mill Tailings Radiation Control Act of 1978, sec. 104 (42 U.S.C. 7914); 44 U.S.C. 3504 note."
regulatory_source: "26 FR 284, Jan. 14, 1961, unless otherwise noted."
cfr_part: "40"
---


# 40.3 License requirements.

A person subject to the regulations in this part may not receive title to, own, receive, possess, use, transfer, provide for long-term care, deliver or dispose of byproduct material or residual radioactive material as defined in this part or any source material after removal from its place of deposit in nature, unless authorized in a specific or general license issued by the Commission under the regulations in this part.

[55 FR 45598, Oct. 30, 1990]