In short
The OSHA 10 is a 10-hour course for entry-level workers that covers the major job site hazards and worker rights. The OSHA 30 is a 30-hour course for supervisors and workers with safety duties that covers those topics in more depth plus managing safety for a crew. If you are new, take the OSHA 10. Take the OSHA 30 when you are moving toward a lead or foreman role.
| OSHA 10 | OSHA 30 | |
|---|---|---|
| Hours | 10 | 30 |
| Built for | Entry-level workers | Supervisors and people with safety duties |
| Minimum days | 2 | 4 |
| Versions | Construction, general industry | Construction, general industry |
| Card | Department of Labor completion card | Department of Labor completion card |
| Usual first step? | Yes | Usually later |
Which one employers ask for
Job postings for laborers, helpers and apprentices usually list the OSHA 10. Postings for foremen, superintendents and safety coordinators often list the OSHA 30. If a posting says "OSHA 10 or higher," the 30 counts.
Getting into construction?
Tell us your trade and ZIP and we will send programs, many with OSHA training included.
Straight answers
Is OSHA 30 harder than OSHA 10?
It is longer and goes deeper, but it is written for working tradespeople, not engineers.
Can I skip OSHA 10 and go straight to OSHA 30?
Yes. There is no requirement to take the 10 first.
Which is better for getting hired?
For entry-level jobs, the OSHA 10 is usually enough. The 30 helps when you apply for lead roles.