105 CMR 120.535
Authorization for Calibration, Transmission and Reference Sources
(A) Any person authorized by 105 CMR 120.506 for medical use of byproduct material may
receive, possess, and use any of the following byproduct material for check, calibration,
transmission, and reference use:
(1) Sealed sources, not exceeding 1.11 GBq (30 mCi) each, manufactured and distributed
by a person licensed under 105 CMR 120.128(L) or equivalent Nuclear Regulatory
Commission or Agreement State regulations;
(2) Sealed sources, not exceeding 1.11 Gbq (30 mCi) each, redistributed by a licensee
authorized to redistribute the sealed sources manufactured and distributed by a person
licensed under 105 CMR 120.128(L) or equivalent Nuclear Regulatory Commission or
Agreement State regulations, providing the redistributed sealed sources are in the original
packaging and shielding and are accompanied by the manufacturer's approved instructions;
(3) Any byproduct material with a half-life not longer than 120 days in individual amounts
not to exceed 0.56 GBq (15 mCi);
(4) Any byproduct material with a half-life longer than 120 days in individual amounts not
to exceed the smaller of 7.4 MBq (200 µCi) or 1000 times the quantities in 105 CMR