EPA ID Numbers, Manifests and Fees

To apply for, reactivate, or inactivate a permanent California identification number, submit DTSC Form 1358.

Persons who generate, transport or offer for transport, treat, store, or dispose of hazardous waste generally must have an Identification (ID) Number, which is used to identify the hazardous waste handler and to track the waste from its point of origin to its final disposal ("From Cradle to Grave").

Most hazardous waste falls into two types in California: waste regulated by the federal government under the Resource Conservation and Recovery Act is known as "RCRA waste"; waste regulated by California law alone is known as "non-RCRA" or "California-only" waste. All hazardous waste in (RCRA and non-RCRA) California is regulated under state statutes and regulations. If a business generates more than 1 kilogram of RCRA acutely hazardous waste per month or more than 100 kilograms of other RCRA waste per month, they must have a federal ID number. If the business generates 100 kilograms or less of RCRA waste or one kilogram or less per month of acutely hazardous waste, and meet certain other requirements, they are exempt from having a federal ID number. These businesses are called conditionally exempt small-quantity generators or CESQGs.

DTSC issues ID Numbers for generators, transporters, and treatment, storage, and disposal facilities that handle hazardous wastes not regulated under RCRA. As stated above, this depends on the type of waste that you generate and the rate at which you generate it. DTSC's contractor Tetra Tech Inc., issues federal (RCRA) ID Numbers.  If you need a California ID Number, you can find more information on our California ID Number page.

Contact Information:

The telephone number for California ID number information is (800) 618-6942 or (916) 255-1136 if calling from outside the U.S. When you hear the recorded message, press 1 and then 3 to reach a staff person.  If you need a federal ID Number, please call (415) 495-8895.

Annual EPA ID Number Verification Questionnaire - Generators, transporters, and facilities who are authorized to store, transport, treat, and dispose of hazardous waste are required to annually verify their EPA ID Number information per Health & Safety Code section 25205.16(b).  The purpose of this annual verification is to ensure that the information on record for the EPA ID Number is correct and current.

In approximately June of each year, the Department of Toxics Substances Control mails the EPA ID Number Verification Questionnaire forms to EPA ID Number holders who have active status or who have had their EPA ID Number used on a manifest during the prior calendar year.  The Verification Questionnaire Package also includes a Schedule A fee form for the calculation of manifest fees owed and a Schedule B fee form to calculate total EPA ID Number verification and manifest fees owed.

Any generator, transporter, or facility operator who fails to return the Verification Questionnaire forms shall be subject to suspension of any and all identification numbers and to any other enforcement action (Health & Safety Code section 25205.16(c)).

See Verification Questionnaire Frequently Asked Questions for more information.