e Guam Police Department may suspend, cancel or revoke the certificate of ownership or the certificate of number in any of the following events:
(a) when the Department is satisfied that such certificate of ownership or certificate of number was fraudulently obtained or erroneously issued;

(b) when the Department determines that a vessel is mechanically unfit or unsafe to be operated;
(c) when a vessel has been dismantled or wrecked;
(d) when the Department determines that the required fee has not been paid and the same is not paid upon reasonable notice and demand;
(e) when the certificate of number or the painted number is knowingly displayed upon a vessel other than the one for which issued; and

10 Guam Code Ann. HEALTH AND SAFETY
CH. 69 BOATING

(f) when the certificate of number could have been refused when last issued or renewed or when the Department is so autho- rized under any other provision of law.
Whatever the Guam Police Department, as authorized under this Chapter, cancels, suspends or revokes the certificate of ownership or the certificate of number, the owner or person in possession shall immediately return the documents so cancelled, suspended or revoked to the Department.
SOURCE: GC § 8995.10, as added by P.L. 15-54.