Harbor Master and Board of Harbor Commissioners, proudly serving the Port of Portland, Maine

The Harbor Master and Board of Harbor Commissioners are devoted to the safe and well ordered management of the waterfronts for the cities of Portland and South Portland for over 100 years. Here you will find information on mooring permits, harbor regulations, Maine boating laws, marine construction, harbor pilotage and other marine resources to make your harbor experience enjoyable, safe and secure.

News and Updates


Cruise ship season is upon us, all mariners are reminded that there is a 50yd security/safety zone around the ships while they are in port.



Maine Boating Laws

All of the following laws and regulations have either been passed by the Maine legislature or adopted by the Commissioner of Inland Fisheries & Wildlife. The following rules/laws are intended to be used only as a guide for boating, and in some cases, the laws and rules have been summarized. For more detailed information on any of the laws/rules contact the Department office In Augusta.


Harbor Regulations 

The following Rules of the Commission for the Harbor of Portland (hereinafter "Rules") are supplementary to the provisions of P. & S.L. 1981, c. 98, and P. & S. Law 1993, c. 34, as amended, the act establishing the Commissioners (hereinafter collectively the "Act")[1], as it relates to the authority of the Commissioners for Portland Harbor, and are adopted pursuant to the authority granted under Section 6 (Rulemaking).


Big Ships, Little Boats

Better Understanding for Safer Boating In Portland Harbor and Casco Bay