Regulations last checked for updates: Nov 22, 2024

Title 10 - Energy last revised: Nov 19, 2024
§ 34.21 - Limits on external radiation levels from storage containers and source changers.

The maximum exposure rate limits for storage containers and source changers are 2 millisieverts (200 millirem) per hour at any exterior surface, and 0.1 millisieverts (10 millirem) per hour at 1 meter from any exterior surface with the sealed source in the shielded position.

authority: Atomic Energy Act of 1954, secs. 81, 161, 181, 182, 183, 223, 234, 274 (42 U.S.C. 2111,2201,2231,2232,2233,2273,2282,2021; Energy Reorganization Act of 1974, secs. 201, 206 (42 U.S.C. 5841,5846; 44 U.S.C. 3504 note
source: 62 FR 28963, May 28, 1997, unless otherwise noted.
cite as: 10 CFR 34.21