Military jobs to civilian trades
19 Army, Navy, Air Force and Marine Corps occupations whose official job titles line up with trades on this site, with links to each branch's COOL (Credentialing Opportunities On-Line) page and to civilian programs and starter kits.
Updated
Not affiliated with the U.S. military, the Department of Defense (Department of War) or the VA. This is an independent guide that summarizes official public information and links to the official source. It is not recruiting material; talk to the official program or a counselor before making decisions. Last checked Oct 16, 2026.
Matches are by official occupation title. COOL lists the specific civilian certifications and licenses for each occupation (and how credentialing can be funded); open the COOL link for details, since we couldn't read COOL's credential lists automatically.
Using the GI Bill or Tuition Assistance for a civilian program? See GI Bill & TA, and paid apprenticeships by state.
Frequently asked questions
What is COOL?
Credentialing Opportunities On-Line (cool.osd.mil) is the Defense Department's site that links each military occupation to related civilian certifications and licenses, with eligibility and exam information.
Which military jobs translate to HVAC?
By official title, Air Force 3E1X1 (Heating, Ventilation, Air Conditioning and Refrigeration) and Marine Corps 1161 (Refrigeration and Air Conditioning Technician). Check COOL for the related civilian credentials.