(1) If a tariff or supplement to a tariff or a revised page is issued which is to displace a part of another tariff which is in force at the time and which tariff is not thereby canceled in full, it shall specifically state the portion of such other tariff or such other supplement or revised page which is thereby canceled, and such other tariff shall at the same time be correspondingly amended, effective on the same date. Such reissue, supplement or revised page must state where rates or fares will thereafter be found and must be filed at the same time and in connection with the tariff, supplement or revised page which contains the new rates or fares.

(2) When a tariff is canceled by the issuance of another tariff to take its place, cancellation notice must be given by notice in the new tariff as provided in WAC 480-149-030 (1)(b).

(3) An agent who acts under authority of power of attorney is fully authorized to act for the principals that have named him their agent and attorney, and therefore when an agent publishes rates or fares in his tariffs which are to displace the rates or fares in his principal's tariff, the agent must cancel the rates or fares in his principal's tariffs as per subsection (1) of this rule.

(4) A carrier must not publish in its individual tariff rates or fares which are to displace the rates or fares published in a tariff of a duly authorized agent unless the tariff is accompanied by a supplement issued by the agent canceling the rates or fares in his tariff effective on the same date, as per subsection (1) of this rule.

(5) When a tariff is canceled in whole or in part by a supplement thereto, the supplement must show where the rates or fares will thereafter be found or what rates or fares will thereafter apply. When a tariff is canceled by another tariff which does not contain all the rates or fares shown in the tariff to be canceled, the canceling tariff must show where rates or fares not shown therein will thereafter be found or what rates or fares will thereafter apply.

(6) When portions of a tariff or of a supplement to a tariff, are designated as items they must be given numbers; and the cancellation of an item by supplement must be under the same item number with a letter suffix in alphabetical sequence. If an item or any part thereof is transferred to another item of different number in the same tariff, the cancellation must be carried under the original item number and must show in what item or items the effective rates or fares are to be found. If an item is withdrawn in its entirety or expires by its own terms, leaving no rates or fares or provisions in effect in that item, the cancellation or expiration must be brought forward in subsequent supplements as a reissued item. When withdrawing a rule or item designated by an item number, the canceled matter need not be reproduced in connection with the item effecting the cancellation, except to the extent necessary to identify the item.