A company must provide at least one business-day notice to the commission for the following filings:

(1) Initial tariff and time schedule filings that accompany applications for certificated authority;

(2) Tariff and time schedule adoptions filed under the provisions of WAC 480-30-376; and

(3) Tariff and time schedule filings whose only purpose is to add a new service option or a service level which has not been previously included in the company's tariff.