| Aspect | National Board Inspector | Boiler Inspector |
|---|
| Certifications | National Board Commission, ASME certifications | State-specific boiler safety certifications, ASME certifications |
| Work Environment | Inspecting pressure vessels, tanks, and boilers across various industries | Inspecting boilers primarily within state or local jurisdictions |
| Employer & Industry Usage | Federal and private sector, nationwide | State agencies, local jurisdictions, and private companies |
The main difference is that a National Board Inspector holds a federal commission to inspect pressure vessels nationwide, while a Boiler Inspector typically works within a specific state or local jurisdiction focusing on boiler safety compliance. Both roles require similar certifications and involve inspecting pressure equipment, but their scope and governing bodies differ.