The Certified Unified Program Agency (CUPA) was developed to consolidate the administration of six specific state hazardous materials programs under one agency. The CUPA for the County of Lassen is the Lassen County Environmental Health Department. Under the CUPA, site inspections of these hazardous materials programs (Aboveground Petroleum Storage Act [APSA], Underground Storage Tanks [UST], Hazardous Waste Tiered Treatment, Hazardous Waste Generators, Hazardous Materials Management and Response Plans, and the California Fire Code) are consolidated and accomplished by a single inspection. These departments also provide emergency response to hazardous materials events, performing health and environmental risk assessment and substance identification.