N.M. Admin. Code § 20.3.1.2 - SCOPE
Except as otherwise specifically provided, this part applies to all persons who receive, possess, use, transfer, own or acquire any source of radiation; provided, however, that nothing in this part shall apply to any person to the extent that such person is subject to regulations by the NRC. Regulation by the state of source material, byproduct material and special nuclear material in quantities not sufficient to form a critical mass is subject to the provisions of the agreement between the state and the NRC and 10 CFR Part 150.
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