Small Business Hazardous Waste Program (CESQG)

Small Business Hazardous Waste Program

State and Federal law require that all businesses and industries who generate, store, or accumulate hazardous waste comply with regulations for proper treatment, storage, and disposal of these wastes. 


CESQG Information Sheet (PDF)

Inventory Sheet (PDF)

Business Universal Waste

Provided an appointment is made, Business Universal Waste as listed below can be dropped off at a Hazardous Waste event without an EPA ID Number. Call 800-714-1195

  • Fluorescent bulbs 
  • Alkaline Batteries 
  • Rechargeable batteries
  • Lithium batteries 
  • Mercury-Containing devises
  • Non-empty aerosol cans with hazardous waste

Properties of Hazardous Waste

  • Toxic (poisonous when ingested, inhaled or touched)
  • Flammable (easy to ignite)
  • Corrosive (eats away material or human tissue by chemical action)
  • Reactive (creates an explosion or produces deadly vapors)
  • Hazardous waste includes: solvents, chemicals, pesticides, many automotive fluids such as motor oil, and many cleaning products.

Conditionally Exempt Small Quantity Generator (CESQG)

Your business qualifies as a CESQG if it generates per month:

  • Less than 220 pounds or 27 gallons of most hazardous materials (paints, solvents, chemicals)
  • Less than 2.2 pounds of acutely hazardous chemicals (mercury or some lab chemicals)
  • Less than 110 pounds of perchloroethylene

Registering as a CESQG

You need a complete inventory of the hazardous waste you wish to dispose of at the time you register. Hazardous waste brought to the program must be described by at least the following:

  1. Your Company name, address, phone number and EPA IdNumber .
  2. Estimate of how much hazardous waste is generated per month and per year at your business site.
  3. Chemical name or trade name of the waste.
  4. Percentages of chemical constituents in the waste.
  5. Process generating waste and possible contaminants.
  6. Size, type, weight, and number of containers to be brought in. Material Safety Data Sheets (MSDS) are often your best source of information regarding the potentially hazardous products you use. An MSDS will list the hazardous constituents of each product. MSDS's are available from product suppliers. If you have an MSDS for the hazardous product or waste you want to dispose of, have it handy when you call in to register and bring a copy with you on the day of the CESQG event.

If you do not have an MSDS for your hazardous product or waste, describe the waste's characteristics, uses, and origin to the CESQG coordinator and mark this information on the product container is likely to help with the waste description.

If the waste is not in its original container, label the container clearly with the chemical contents or bring the original container along with you. Unknown waste cannot be accepted under this program, but may be resubmitted once a satisfactory description is available. 

Program Limits

State regulations allow CESQG events to collect no more than 220 pounds or 27 gallons of waste per business per collection event. Explosive, infectious radioactive, and certain chemical wastes and products are not accepted at CESQG events. 

Regulated Hazardous Waste Generators 

If your business generates per month more than the amounts of waste listed above, you are considered a regulated generator. You MAY NOT participate in the CESQG event. For information on how to dispose of your hazardous waste, call a local hazardous waste management company, or the State Department of Toxic Substance Control at 916-255-1136. 

Generator Identification Number (EPA ID Number)

In the State of California, every business which generates hazardous waste is required to have a Generator Identification Number. This can be obtained by contacting the State Department of Toxic Substances Control at 800-618-6942. Please obtain a EPA Number before making an appointment. 

Make an Appointment

Complete the inventory sheet (PDF) and call 800-714-1195 to make an appointment or get answers to your questions. 


There is a processing fee involved in the collection of CESQG hazardous wastes. Prices will vary considerably depending on the amount of waste being brought in for disposal. Exact prices can only be given through the CESQG registration process. 


Call 800-714-1195