Section 160.077-7 - Procedure for approval of design or material revision(a) Each change in design, material, or construction of an approved PFD must be approved by the Commandant before being used in any production of PFDs.(b) Determinations of equivalence of design, construction, and materials may be made only by the Commandant.CGD 78-174, 60 FR 2492, Jan. 9, 1995