OSHA's mission is to assure the safety and health of America's working men and women by promulgating and enforcing standards and regulations; providing training, outreach, and education; establishing partnerships; and encouraging continual improvement in workplace safety and health as well as the development of comprehensive safety and health management systems. Effective and efficient use of resources requires careful, flexible planning. In this way, the overall goal of hazard abatement and employee protection is best served. This instruction updates policies and provides clarification to ensure uniform enforcement of paragraph (q) of the Hazardous Waste Operations and Emergency Response standard (HAZWOPER), 29 CFR 1910.120 and 1926.65, which covers emergency response operations for releases of, or substantial threats of releases of, hazardous substances without regard to the location of the hazard.