- AFGE: American Federation of Government Employees
- AFL: American Federation of Labor
- AFL-CIO: American Federation of Labor and Congress of Industrial Organizations
- ATF: Bureau of Alcohol, Tobacco, Firearms, and Explosives
- BIW: Bath Iron Works
- C02: Carpenter
- C70: Crane Operator
- CBA: Collective Bargaining Agreement; Contract
- CIO: Congress of Industrial Organizations
- CUPE: Canadian Union of Public Employees
- DHS: Department of Homeland Security
- DOJ: Department of Justice
- E02: Electrician
- FDR: Franklin Delano Roosevelt
- FML: Family Medical Leave
- FTC: Federal Trade Commission
- GDP: Gross Domestic Product
- H18: Material Handlers; Transportation
- HR: Human Resources
- I02: Insulator
- IAM: International Association of Machinists
- IBEW: International Brotherhood of Electrical Workers
- IUMSWA: Industrial Union of Marine and Shipbuilding Workers of America
- IWW: Industrial Workers of the World
- L40: General Laborer
- LR: Labor Relations
- M03: Maintenance Custodian
- M04: Machinist; Machine Operator
- M20: Maintenance Mechanic
- M21: Maintenance Electric and HVAC
- MOA: Memorandum of Agreement
- NCIS: Naval Criminal Investigative Service
- NFFE: National Federation of Federal Employees (IAM)
- NLRA: National Labor Relations Act
- NLRB: National Labor Relations Board
- NOAA: National Oceanic and Atmospheric Administration
- NWS: National Weather Service
- O04: Outside Machinist
- P06: Sign Painters
- P10: Preservation Technician; Painter
- P18: Pipefitter
- S02: Safety Technician; Safety Inspector
- S06: Sandblaster
- S18: Stagebuilder
- S40: Shipfitter
- T04: Tinsmith; Tin Knocker
- T12: Tugboat Operator
- VA: Department of Veterans Affairs
- W12: Welder
- W3: William W. Winpisinger Education and Technology Center
- Y02: Yard Rigger; Rigger