10 C.F.R. § 26.605
(a)
(1) The licensee or other entity must establish, implement, and maintain an FFD program under this paragraph (a) before the start of—
(2) An FFD program under this paragraph (a) must—
(ii) Implement the following requirements and subparts:
(B) Section 26.35, for employee assistance programs:
(1) For licensees and other entities who demonstrate compliance with § 73.100(a)(1)(i) of this chapter, § 26.35 must be implemented before the earliest occurrence of the following, as applicable: the loading of fuel onsite into a reactor vessel; receiving a fueled manufactured reactor; or individuals subject to this part operate, test, perform maintenance of, or direct the maintenance or surveillance of security-related equipment or equipment that a risk-informed evaluation process has shown to be significant to public health and safety; and
(2) For licensees and other entities that do not demonstrate compliance with § 73.100(a)(1)(i) of this chapter, § 26.35 must be implemented before the start of activities performed under an ML that allows the assembly, non-operational testing, or both, of a manufactured reactor;
(b)
(1) Except for a licensee or other entity that demonstrates compliance with § 73.100(a)(1)(i) of this chapter and elects to implement an FFD program that satisfies the requirements of this paragraph (b), for which its FFD program must be established, implemented, and maintained no later than the start of construction activities, as defined in § 26.5, and except for holders of manufacturing licenses if they possess a separate license to load fuel into a manufactured reactor, for which its FFD program under this paragraph (b) must be established, implemented, and maintained no later than the start of the loading of fuel into the reactor, the licensee or other entity must establish, implement, and maintain an FFD program under this paragraph (b) before the earliest occurrence of the following, as applicable:
(2) An FFD program under this paragraph (b) must—
(ii) Implements the following requirements and subparts: