(a) This part provides general introductory and applicability material for the initial regulatory program required by section 502 and other sections of the Act which require early implementation. The initial regulatory program is effective until permanent programs are approved in accordance with sections 503, 504, or 523 of the Act.(b) The initial regulatory program which this part introduces includes-(1) Environmental performance standards of parts 715 through 718 of this chapter.(2) Inspection and enforcement procedures of parts 720 through 723 of this chapter; and(3) Reimbursements to States of part 725 of this chapter.