Certifications for Highway Maintenance Workers
15 certifications are listed for Highway Maintenance Workers (O*NET 47-4051.00) in the U.S. Department of Labor's CareerOneStop Certification Finder. 12 are tied directly to this occupation; the other 3 are related.
The order is CareerOneStop's, not ours: in demand first, then NCCA- and ANAB-accredited, then the rest. Downloaded July 2026. Records marked confidential or withdrawn at source are not published here. Listing is not endorsement, and this page is not advice about which credential to pursue.
- Mobile Crane Operator CertificationANAB (ANSI) accredited
- Certification in Construction Materials Testing - Concrete Level IMilitary occupational specialty
- Highway Construction InspectionMilitary occupational specialty
- Heavy Equipment Operator: Motor GraderIndustry-endorsed
- Certification in Construction Materials Testing - Asphalt
- Certified Flagger
- Certified Guardrail Installer(GI)
- Certified Truck-Mounted Attenuator Operator(TMA)
- Flagger Instructor Training(FIT)
- Pavement Marking Technician(PMT)
- Pavement Marking Technician Level II
- Signs & Pavement Markings Technician Level I
- SIGNS SENIOR TECHNICIAN LEVEL III
- Roadway Lighting Technician Level I
- Traffic Signal Operations Specialist(TSOS)
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Certification data from CareerOneStop, sponsored by the U.S. Department of Labor, Employment and Training Administration (DOLETA) and the Minnesota Department of Employment & Economic Development (DEED).
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