29 C.F.R. § 1956.24
The procedures and standards contained in part 1955 of this chapter shall be applicable to the withdrawal of approval of plans approved under this part 1956, except that (because these plans, as do public employee programs aproved and financed in connection with a State plan covering private employees, must cover all employees of State and local agencies in a State whenever a State is constitutionally able to do so, at least developmentally), no industrial or occupational issues may be considered a separable portion of a plan under § 1955.2(a)(10) ; and, as Federal standards and enforcement do not apply to State and local government employers, withdrawal of approval of a plan approved under this part 1956 could not bring about application of the provisions of the Federal Act to such employers as set out in § 1955.4 of this chapter.
29 C.F.R. §1956.24