Business and Professions Code § 6748

(a) Notwithstanding Section 6747, this chapter applies to engineering work approved by a person employed by a privately or publicly owned utility in the planning, designing, construction, operation, or maintenance of a nuclear powerplant which is owned or operated by the utility.

(b) Any engineering work subject to subdivision (a) shall be approved by a professional engineer registered in the applicable discipline of engineering specified in Section 6732.