Businesses that handle hazardous materials in California are required to file a Hazardous Materials Business Plan (HMBP). The HMBP consists of general business information; basic information on the location, type, quantity and health risks of hazardous materials; and emergency response and training plans.
The California Health & Safety Code (Division 20, Chapter 6.95) defines a hazardous material as "any material that, because of its quantity, concentration, or physical or chemical characteristics, poses a significant present or potential hazard to human health and the environment if released into the workplace or the environment." Common hazardous materials include new and used oil, gasoline, diesel fuel, propane, antifreeze, solvents, compressed gases, etc. Generally speaking, hazardous materials must be reported if they are handled in quantities equal to or greater than the following:
- 55 gallons of a liquid
- 200 standard cubic feet of a compressed gas
- 500 pounds of a solid