(a) The rules in this part govern the procedure for complaints filed under 39 U.S.C. 3662 that meet the form and manner requirements of subpart B of this part. Part 3010 of this chapter applies unless otherwise stated in this part or otherwise ordered by the Commission.

(b) Subpart E to part 3010 of this chapter does not apply to this part unless and until the Commission makes a finding under § 3022.30(a)(1) that the complaint raises material issues of fact or law and that the issues shall be considered through a hearing on the record.

Any interested person (including a duly appointed officer of the Commission representing the interests of the general public) may file a written complaint with the Commission if that person believes that the Postal Service is not operating in conformance with:

(a) The provisions of 39 U.S.C. chapter 36, or 39 U.S.C. 101(d), 401(2), 403(c), 404a, or 601; or

(b) Any rule, order, or other regulatory requirement based on any of these statutory provisions.