Cal. Health & Safety Code § 25201.5
(a) Notwithstanding any other law, a hazardous waste facilities permit is not required for a generator who treats hazardous waste of a total weight of not more than 500 pounds, or a total volume of not more than 55 gallons, in any calendar month, if both of the following conditions are met:
(b) Notwithstanding any other law, treatment in the following units is ineligible for exemption pursuant to subdivision (a) or (c):
(c) Notwithstanding any other law, a hazardous waste facilities permit or other grant of authorization is not required to conduct the following treatment activities, if the generator treats the following hazardous waste streams using the treatment technology required by this subdivision:
(2) The generator treats a container of 110 gallons or less capacity, which is not constructed of wood, paper, cardboard, fabric, or any other similar absorptive material, for purposes of emptying the container as specified by Section 66261.7 of Title 22 of the California Code of Regulations, as revised July 1, 1990, or treats the inner liners removed from empty containers that once held hazardous waste or hazardous material. The generator shall treat the container or inner liner by using the following technologies, if the treated containers and rinseate are managed in compliance with the applicable requirements of this chapter:
(5) The generator neutralizes acidic or alkaline wastes that are hazardous solely due to corrosivity or toxicity resulting from the presence of acidic or alkaline material from food or food byproducts, and alkaline or acidic waste, other than wastes containing nitric acid, at SIC Code Major Group 20, food and kindred product facilities, if both of the following conditions are met:
(6) Except as provided for specific waste streams in Section 25200.3, the generator conducts the separation by gravity of the following, if the activity is conducted in impervious tanks or containers constructed of noncorrosive materials, the activity does not involve the addition of heat or other form of treatment, or the addition of chemicals other than flocculants and demulsifiers, and the activity is managed in compliance with applicable requirements of federal, state, or local agency or treatment works:
(7) The generator is a laboratory that is certified by the State Water Resources Control Board or operated by an educational institution, and treats wastewater generated onsite solely as a result of analytical testing, or is a laboratory that treats less than one gallon of hazardous waste, which is generated onsite, in any single batch, subject to the following:
(B) The treatment meets all of the following requirements, in addition to all other requirements of this section:
(d) A generator conducting treatment pursuant to subdivision (a) or (c) shall meet all of the following conditions:
(7)
(A) Not less than 60 days before commencing treatment of hazardous waste pursuant to this section, the generator shall submit a notification, in person, into the statewide information management system, or by certified mail, with return receipt requested, to the department and to one of the following:
(C) The notification submitted pursuant to this paragraph shall be completed, dated, and signed in accordance with the requirements of Section 66270.11 of Title 22 of the California Code of Regulations, as those requirements apply to permit applications, shall be on a form prescribed by the department, and shall include, but not be limited to, all of the following information:
(8)
(A) Upon terminating operation of any treatment process or unit exempted pursuant to this section, the generator who conducted the treatment shall remove or decontaminate all waste residues, containment system components, soils, and other structures or equipment contaminated with hazardous waste from the unit. The removal of the unit from service shall be conducted in a manner that does both of the following:
(B) Any owner or operator who permanently ceases operation of a treatment process or unit that is conditionally exempted pursuant to this section shall, upon completion of all activities required under this subdivision, provide written notification in person, into the statewide information management system, or by certified mail, with return receipt requested, to the department and to one of the following:
(e)
(2)
(i)
(1) Within 30 days of any change in operation that necessitates modifying any of the information submitted in the notification required pursuant to paragraph (7) of subdivision (d), a generator shall submit an amended notification, in person, into the statewide information management system, or by certified mail, with return receipt requested, to the department and to one of the following:
(j) A person who submitted a notification to the department pursuant to paragraph (7) of subdivision (d) shall be deemed to be operating pursuant to this section, and, except as provided in Section 25404.5, shall be subject to the fee set forth in Section 25205.2, until that person submits a certification that the generator has ceased all treatment activities of hazardous waste streams authorized pursuant to this section in accordance with the requirements of paragraph (8) of subdivision (d). The certification required by this subdivision shall be submitted, in person, into the statewide information management system, or by certified mail, with return receipt requested, to the department and to one of the following: