Cal. Health & Safety Code § 25201.8
(a) Notwithstanding any other provision of law, a generator of effluent hazardous waste from dry cleaning operations who treats the waste onsite is not a hazardous waste facility, and is exempt from the hazardous waste facilities permit requirements imposed pursuant to this chapter, or the regulations pertaining to hazardous waste facilities permit requirements adopted by the department pursuant to this chapter, if the generator meets all of the following conditions: