NPMCA, National Pavement Maintenance Contractors Association

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External Resource3 min

FHWA Worker Visibility Rule (23 CFR 634)

FHWA's page on the federal worker visibility rule, which requires high-visibility safety apparel meeting ANSI/ISEA 107 for workers on federal-aid highway rights-of-way. Even on private lots, this rule is the accepted benchmark for what a hi-vis vest or shirt should be. Owners buying crew apparel and foremen enforcing it should read this.

External authoritative source. The named publisher maintains this material. Source verified means NPMCA checked the source identity, link and classification; it does not mean NPMCA technically reviewed or approved the underlying regulation or guidance. Open the source for current requirements.
Open source — FHWA

Free · outside site

For
New Crew Member, Laborer, Equipment Operator, Sealcoating Technician, Crack Repair Technician, Asphalt Maintenance Technician, Pavement Marking Technician, Concrete Maintenance Technician, Snow and Ice Worker, Crew Leader, Foreman, Supervisor, Owner-Operator, Business Owner
Jurisdiction
US-federal
Version
1.0 · Published
Source identity checked
2026-09-09
Maintained by
FHWA

Sources

  1. [1]Worker Visibility Rule - 23 CFR Part 634 — FHWA · checked 2026-09-09

Educational only. Your employer is responsible for the safety and compliance program on your job. Talk to a qualified professional where a decision depends on it.