EHS&S Consulting Across California

California operates the most extensive environmental, health, and safety regulatory framework in the United States. Cal/OSHA is stricter than federal OSHA. CARB sets national-leading air and climate standards. CalEPA, DTSC, the regional Air Quality Management Districts, and the Regional Water Quality Control Boards each operate independent permit programs with overlapping jurisdiction, and Proposition 65 adds chemical-exposure obligations on top of everything else.

The companies that thrive under this framework treat compliance as engineering work, not paperwork. Citadel EHS has been operating exclusively across California since our founding, and we’ve built our team and our practice around the specific demands of doing business here. Our 8 California offices put credentialed Certified Industrial Hygienists, Certified Safety Professionals, Certified Hazardous Materials Managers, and Professional Engineers within a short drive of every major employer in the state.