California Code, Health and Safety Code - HSC § 25508.3

Except for a household hazardous waste collection facility, as defined in Section 25218.1, a handler subject to the requirements of this chapter, if directed by a unified program agency during an investigation or inspection, including a complaint inspection, shall notify the unified program agency if hazardous materials in quantities equal to, or greater than, 165 gallons of a liquid, 600 cubic feet of a gas at standard temperature and pressure, or 1,500 pounds of a solid, are to be removed from the storage or handling location and transferred to another location. The handler shall disclose all of the following information as directed by the unified program agency: