Skip to main content
Back to Glossary
Safety & OSHAaka: OSHA 10-houraka: OSHA 10 card

OSHA 10

In Plain English

A 10-hour safety training course that gives construction workers a basic certification in job site safety.

Definition

OSHA 10 is a 10-hour outreach training course authorized by OSHA that provides construction workers with basic safety awareness, hazard recognition, and workers' rights education. Completion results in an OSHA 10-hour card. Many public agencies, general contractors, and union agreements require an OSHA 10 card as a condition of employment on their projects.

Why It Matters in Bidding

Many public owners, GCs, and union agreements require every worker on site to hold an OSHA 10 card, so estimators should confirm the requirement at bid time and account for training time and replacement-card costs in labor planning. Missing this requirement can lead to workers being turned away at the gate, causing crew shortages and schedule slippage that a tight bid cannot absorb. Tracking card validity is a routine compliance task that protects both productivity and prequalification standing.

Example

Before mobilizing on a state-funded school project, a GC's safety coordinator verifies that every tradesperson holds a current OSHA 10 card, because the contract makes the card a condition of site access for all field labor.

Related Terms

OSHA 30OSHASite Safety PlanToolbox Talk

Frequently Asked Questions

Entry-level construction workers and tradespeople are the typical audience. Many public projects, general contractors, and union or project labor agreements require all field workers to hold a valid OSHA 10 card as a condition of site access, so contractors should confirm the requirement before mobilizing crews.
OSHA 10 is a 10-hour course covering basic hazard awareness for entry-level workers, while OSHA 30 is a 30-hour course aimed at supervisors, foremen, and safety personnel with deeper coverage of standards and safety management. Larger projects often require OSHA 30 for leadership and OSHA 10 for the general workforce.
Federal OSHA does not set an expiration date on the card itself, but many states, owners, and contractors impose their own validity window, commonly requiring renewal every few years. Contractors bidding public or unionized work should verify the specific currency requirement, since stale cards can block site access despite federal rules.

Need more than definitions?

Get AI-powered bid alerts, automated form filling, and proposal drafting.

Start Free Trial

© 2026 ConstructionBids.ai — A LaderaLabs Product