California Code, Public Resources Code - PRC § 48624

“Used oil recycling facility” means a facility that is issued a hazardous waste facilities permit or grant of interim status by the department pursuant to Section 25200 or 25200.5 of the Health and Safety Code to convert used oil into recycled oil, or an out-of-state facility operating in substantial compliance with Part 279 (commencing with Section 279.1) of Title 40 of the Code of Federal Regulations for the purpose of recycling used oil.