(1) Upon complaint by an interested party, or upon its own motion after notice and opportunity for hearing, the commission may cancel, revoke, suspend, alter, or amend a certificate issued under this chapter for any of the following grounds:

(a) Violation of an order, decision, rule, regulation, or requirement established by the commission or the requirements of law;

(b) Failure of the certificate holder to initiate service by the conclusion of the fifth year after the certificate has been granted or by the conclusion of an extension granted under RCW 81.84.010 (2) or (3), if the commission has considered the progress report information required under RCW 81.84.010 (2) or (3);

(c) Failure of the certificate holder to file an annual report;

(d) Filing by the certificate holder of an annual report that shows no revenue in the previous twelve-month period after service has been initiated;

(e) Violation of any provision of this chapter;

(f) Violation of or failure to observe the provisions or conditions of the certificate, tariffs or filed time schedule;

(g) Failure of the certificate holder to maintain the required insurance coverage in full force and effect; or

(h) Failure or refusal to furnish reasonable and adequate service after initiating service.

(2) The commission shall institute an investigation upon receipt of a complaint by an interested party to determine whether the complaint has merit.

(3) Within thirty days of a finding that a complaint filed by an interested party has merit and that the certificate holder is in violation, or upon its own finding that the certificate holder is in violation, as described in subsection (1)(a) through (h) of this section, the commission shall take appropriate action to cancel, revoke, suspend, alter or amend the certificate. The commission shall notify the certificate holder of the action to be taken, and shall at the same time offer the certificate holder an opportunity for hearing through an adjudication or brief adjudication.