(1) All commercial ferries shall file with the commission tariffs containing fair, just and reasonable rates governing the transportation services to be provided.

(a) Pursuant to Article 12, section 12 of the Washington Constitution and RCW 81.28.180 and 81.28.190, rates contained in commercial ferry tariffs must be nondiscriminatory and nonpreferential.

(b) Tariffs may provide for variations within a band of rates, and may provide for exceptions and conditions in defined circumstances.

(2) Operators of commercial ferries shall prepare, publish, file and reissue their tariffs in accordance with the provisions of the commission's Tariff Circular No. 6.

(3) Tariffs must be issued in the registered name of the operator and must show its certificate or registration number.

(4) Tariffs must contain a title page which identifies the name of the company; its business name, if any; its business address; its business telephone number; and the name, address and business telephone number of the issuing agent.