In the Military

• 120A Construction Engineering Technician (Warrant Officer only)
• 12B Combat Engineer (Enlisted)
• 12C Bridge Crewmember (Enlisted)
• 12H Construction Engineering Supervisor (Enlisted)
• 12W Carpentry and Masonry Specialist (Enlisted)
• 18C Special Forces Engineer Sergeant (Enlisted)
• 19D Cavalry Scout (Enlisted)
• 91B Wheeled Vehicle Mechanic (Enlisted)

The following military occupations are no longer in active use:

• 21W Carpentry and Masonry Specialist (Enlisted)
• 51B Carpentry and Masonry Specialist (Enlisted)

• DC Damage Controlman (Enlisted)
• MAT Material Maintenance Specialty (Warrant Officer only)

The following military occupations are no longer in active use:

• 661 Builder (Enlisted)
• 662 Builder - Heavy (Enlisted)
• 663 Builder - Light (Enlisted)

• 1169 Utilities Chief (Enlisted)
• 1300 Basic Engineer, Construction, and Equipment Marine (Enlisted)
• 1302 Combat Engineer Officer (Commissioned Officer only)
• 1371 Combat Engineer (Enlisted)

• 002594 Builder (Enlisted)
• 002688 Constructionman (Enlisted)
• 003763 Maintenance Technician (Enlisted)
• 4205 Facilities Engineering Officer (Commissioned or Warrant Officer)
• 4230 Facilities Construction/Facilities Services Officer (Commissioned or Warrant Officer)
• 4340 Officer in Charge, Naval Construction Battalion Unit (Commissioned or Warrant Officer)
• 5999 Conversion NEC BU Builder Basic (Enlisted)
• B13A Advanced Builder (Enlisted)
• BU Builder (Enlisted)
• CN Constructionman (Enlisted)
• CU Master Chief Constructionman (Enlisted)
• HT Hull Maintenance Technician (Enlisted)

• 3E311 Structural Helper (Enlisted)
• 3E331 Structural Apprentice (Enlisted)
• 3E351 Structural Journeyman (Enlisted)
• 3E3X1 Structural (Enlisted)