Hierarchy of air contaminant controls; respirators for emergencies.
OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
January 26, 1993
Mr. Patrick M. Sturgeon
Environmental Safety Supervisor
500 West Main Street
Post Office 1438
Louisville, Kentucky 40201-1438
Dear Mr. Sturgeon:
This is a response to your recent letters concerning respiratory protection to the Regional Offices of the Occupational Safety and Health Administration (OSHA).