Household Hazardous Waste Disposal provides a collection center in Rancho Cucamonga, CA, for residents of San Bernardino County to safely dispose of household hazardous waste. The center accepts items such as used motor oil, filters, antifreeze, paints, cleaning products, cooking oil, propane tanks, batteries, and sharps. It operates on Saturdays with specific hours and observes closures during holidays and inclement weather. The service excludes business waste and certain hazardous materials like explosives and radioactive waste. The program also offers free used motor oil containers and mulch made from collected green waste during operating hours.