Entities and Authorities are bestowed with legal responsibilities and are responsible for port and shipping operations. These agencies plays a major role in PNG Maritime Transport sector and PNGHMS requires their clearance and approval in various regulated activities. There are;
a) National Maritime Safety Authority- (NMSA)
b) Department of Transport- (DoT)
c) National Agriculture Quarantine Inspection Authority- (NAQIA)
d) PNG Customs
e) Conservation Environment Protection Authority- (CEPA)
f) Department of Lands and Physical Planning- (DLPP)
g) Department of Labor and Industry