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Navy Rating · Engineering

CM Construction Mechanic

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

Construction Mechanics maintain, diagnose, repair, and overhaul automotive, material handling, weight handling, and construction equipment. They supervise and document repairs, manage repair parts, maintain records, train personnel, and support individual and equipment readiness.

Minimum ASVAB: AR+MC+AS 162

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-18

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: milpersman-1306-618-rating-list-2026-04 (source date 2026-04). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Repair parts research and program management
  • Material and weight-handling equipment overhaul
  • Maintenance and repair record keeping
  • Personnel training in equipment repair procedures

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Mobile Heavy Equipment Mechanics, Except Engines

CM experience diagnosing, repairing, and overhauling construction and material-handling equipment directly overlaps with mobile heavy equipment maintenance.

How to prepare: Prepare a repair portfolio showing equipment types, diagnosed faults, repairs performed, and maintenance records to discuss with heavy equipment service employers.

What the civilian work involves
  • Repair and replace damaged or worn parts.
  • Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.
  • Operate and inspect machines or heavy equipment to diagnose defects.
Civilian tools and software (examples)
  • Fleet management software
  • Maintenance management software
  • Recordkeeping software

Automotive Service Technicians and Mechanics

CM automotive maintenance, diagnosis, repair, overhaul, and documentation experience transfers directly to vehicle service work.

How to prepare: Arrange hands-on practice with civilian computerized vehicle diagnostic equipment through an automotive lab or service shop.

What the civilian work involves
  • Inspect vehicles for damage and record findings so that necessary repairs can be made.
  • Test drive vehicles and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices.
  • Test and adjust repaired systems to meet manufacturers' performance specifications.

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Career Growth

  • Certified Maintenance and Reliability Professionals (CMRP)

    Develop broader maintenance and reliability knowledge to complement hands-on heavy equipment repair experience.

    Eligibility and preparation: No minimum education or work experience is required; candidates must not have taken the exam within the preceding six months.

    For: Mobile Heavy Equipment Mechanics, Except Engines

Notes & Sources

Evidence for this guidance (5 documents)
  1. NAVPERS 18068F Vol I (NEOCS, Jan 2026 edition): CONSTRUCTION MECHANIC (CM)

    [1] Rating chapter "SCOPE OF RATING"; cached text line 20070; NAVPERS 18068F Vol I, 2026-01 edition

    Supports: Repair parts research and program management, Material and weight-handling equipment overhaul, Maintenance and repair record keeping, Personnel training in equipment repair procedures, Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00), Automotive Service Technicians and Mechanics (O*NET 49-3023.00)

  2. O*NET: Mobile Heavy Equipment Mechanics, Except Engines

    [2] O*NET 30.3 occupational data

    Supports: Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00)

  3. O*NET: Automotive Service Technicians and Mechanics

    [3] O*NET 30.3 occupational data

    Supports: Automotive Service Technicians and Mechanics (O*NET 49-3023.00)

  4. COOL credential mapping: Certified Maintenance and Reliability Professionals (CMRP)

    [4] CM cached COOL credential feed

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

  5. Society for Maintenance and Reliability Professionals: CMRP eligibility

    [5] Eligibility; retrieved 23 September 2026

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

Defense contractor jobs for CM

Predecessor codes

Historical codes with documented links to CM. Each history page explains the change.

MM(CBE)Machinist's Mate (CB) (Equipment Operators)MoMMMotor Machinist's Mate

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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