Okla. Stat. tit. 27A § 2-9-107
The authority reserved to the United States Nuclear Regulatory Commission shall only be exercised by this state after this state has achieved agreement status with the Commission pursuant to Section 274b of the Atomic Energy Act of 1954, as amended. In the event of an emergency which threatens the public health, safety and welfare or the environment, the Department of Environmental Quality may impound or order the impounding of by-product material, special nuclear material, and sources of radiation in the possession of any person who is not equipped to observe or fails to observe the provisions of the Radiation Management Act or any rules issued thereunder. The costs of such impoundment shall be assessed against such person.
Okla. Stat. tit. 27A, § 2-9-107