California Code, Health and Safety Code - HSC § 115271.3

If the state receives federal approval to implement and enforce emission standards for radionuclides pursuant to Section 115271.2, the department shall be responsible for the control of emissions of radionuclides into the air. However, nothing in this article shall be construed in any way to give the department any authority to regulate, or be construed to apply to, air emissions from nuclear powerplants that are licensed and regulated by the United States Nuclear Regulatory Commission.