International Organization of Masters, Mates & Pilots

The International Organization of Masters, Mates & Pilots or MM&P is a United States labor union representing licensed mariners. MM&P represents licensed deck officers on U.S.-flag commercial vessels sailing offshore, on the inland waterways and on civilian-crewed ships in the government fleet; state-licensed marine pilots; marine engineers; mariners who work on tug, ferry and harbor tour vessels in New York Harbor and throughout the Northeast; licensed and unlicensed mariners who work on dredges; and maritime industry shore-side clerical and service workers.

Source: Wikipedia — International Organization of Masters, Mates & Pilots (CC BY-SA 4.0)