(1) A person with a substantial interest may petition the commission to modify the Puget Sound pilotage district tariff, and the commission may propose tariff changes on its own initiative.

(2) Persons must file their proposed changes electronically using the commission's records portal.

(3) Proposed changes must:

(a) Be made on the appropriate page(s) of the existing tariff using the commission's tariff template.

(b) Identify the tariff item to be changed.

(c) Fully describe the proposed change.

(d) State clearly the reason(s) for the proposed change.

(e) Include any information or documents that justify the proposed change.

(f) Provide name, title, address, telephone number, and email address of the person or entity proposing the changes.

(4) If the commission modifies the Puget Sound pilotage district tariff, the commission will enter an appropriate order. The order and the modified tariff will state the date on which the revised rates, terms, or conditions become effective. The commission will serve a copy of the modified tariff in electronic format on the Puget Sound pilotage service providers.