1. (a) When a single entity furnishes more than one kind of utility service, pipeline carrier service, or commodity, as defined in AS 42.05 or AS 42.06, the entity shall file a separate tariff for each kind of utility service, pipeline carrier service, or commodity that the entity furnishes.
2. (b) For every service that a utility or pipeline carrier offers that is regulated by the commission, the effective tariff of the utility or pipeline carrier must set out the rates, charges, regulations, terms, and conditions applicable to the service. The effective tariff of every utility or pipeline carrier must specifically provide for, and authorize, every rate or charge subject to the commission's jurisdiction.
3. (c) A utility or pipeline carrier may not deviate from its effective tariff or refuse to apply it uniformly without prior commission approval.
4. (d) If a utility or pipeline carrier charges more or less than the amount provided by its effective tariff, it shall promptly make appropriate adjustments to correct the total overpayment or underpayment.
5. (e) Errors occurring in an effective tariff that result solely from a typographic or reproduction mistake must, upon discovery, be corrected immediately by the utility or pipeline carrier by filing, in compliance with 3 AAC 48.220 and 3 AAC 48.270, revised tariff sheets.

(Eff. 11/16/73, Register 48; am 6/29/84, Register 90; am 10/27/2017, Register 224)

Authority: AS 42.05.141, AS 42.05.371, AS 42.06.140, AS 42.05.151, AS 42.05.381, AS 42.06.360