PMO DAVAO MEMORANDUM CIRCULAR NO. 05, S. 1991, June 27, 1991
VESSEL CLEARANCE CERTIFICATE
National Administrative Register June 27, 1991
(Text available at Office of the National Administrative Register (ONAR), U.P. Law Center, Diliman, Quezon City)
Adopted: 27 June 1991
(SGD.) BIENVENIDO P. BASCO
Port Manager