Masters, Mates & Pilots Collective Bargaining Agreement May 22, 2025 International Organization of Masters, Mates & Pilots at Lamont-Doherty Earth Observatory collective bargaining agreement (union contract). Effective July 1, 2024 - June 30, 2029. Licensed Deck Officers MATES CBA 2024 - 2029.pdf548.8 KB MASTERS CBA LDO 2024 - 2029.pdf500.71 KB