Proceedings for the issuance, amendment, or repeal of rules issued pursuant to authorities other than Section 18(a)(1)(B) of the FTC Act (15 U.S.C. 57a(1)(B)), including proceedings for exemption of products or classes of products from statutory requirements, may be commenced by the Commission upon its own initiative or pursuant to petition. Such petitions will be handled in the same manner and pursuant to the same procedures as prescribed in § 1.31 of this chapter.