The commission may approve on one-day notice:

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

(2) Tariff adoptions filed under the provisions of WAC 480-70-321; and

(3) Tariff 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, if that service option or service level is requested by a customer.