California Identification (ID) Numbers

An ID number identifies each handler of hazardous waste.  See DTSC’s EPA Identification Numbers fact sheet for general information and answers to the most common questions about ID Numbers.

Most generators, transporters and disposal facilities need an ID number to handle, store and/or treat hazardous waste.

Some businesses that generate and handle universal waste and businesses that generate less than 100kg per month of photographic waste containing silver are exempt from having an ID number.

California Permanent ID Numbers
Businesses that generate waste on an ongoing basis must have a permanent ID number.  To get a permanent ID number, you need to complete the required application, DTSC Form 1358.  There is no fee to obtain a permanent ID number.

California Temporary ID Numbers
Temporary ID numbers (90-day numbers) are issued to people or businesses that do not routinely generate hazardous waste.  Call (800) 618-6942 to get a temporary ID number.  Our hours are Monday through Friday 8:15 to 4:45, closed during the lunch hour.  To get a temporary ID number after hours for a spill, call (800) 852-7550.  There is no fee to obtain a temporary ID number.

Federal (RCRA) ID Numbers
Waste regulated by the federal government under the Resource Conservation and Recovery Act is known as "RCRA waste." 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 that is issued by U.S. EPA.

In DTSC’s Hazardous Waste Tracking System (HWTS) you can look up facility and manifest information by searching by ID number, address or business name.   Go to www.hwts.dtsc.ca.gov  and click on Reports.

If you move your business, have a change in ownership or simply change your mailing address, you should notify DTSC of these changes immediately by completing DTSC Form 1358.

DTSC sends out a verification questionnaire to businesses holding permanent federal or California ID numbers.  Businesses are required to respond to with any updates to their business information.  Failure to respond to the verification questionnaire will lead to inactivation of the ID number.  An ID Number Verification Fee and Manifest Fee assessment is included with the verification questionnaire.  Fees are assessed for holders of ID Numbers.    Questionnaires are mailed in June and a final notice is mailed in October.  Additional fee information is available in the Hazardous Waste Fee Summary.

• EPA ID Number Verification Questionnaire & EPA ID Number and Manifest Fee Assessment FAQs
• Hazardous Waste Fee Summary

• DTSC Form 1358 is used for updating information on a California ID number, applying for a new California ID number, inactivating a California ID number or reactivating a California ID number.
  
• U.S. EPA Form 8700-12 is used for updating information on a federal ID number and applying for a new federal ID number.   The form includes extensive instructions.  Please review before printing the entire form.

View the California Health and Safety Code (HSC), Division 20, Chapter 6.5, and the California Code of Regulations (CCR), Title 22, Division 4.5, Environmental Health.

Sections Relating to ID Numbers:
(1) Title 22, CCR 66262.12
(2)  Consolidated Transporter Customers:  HSC 25160.2
(3)  U.S. EPA Regulations in 40 CFR Sections 261.5 and 262.12
(4)  ID Verification Requirement and Fees:  HSC 25205.16
(5)  Manifest Fee:  HSC 25205.15

California
DTSC - Generator Information Services Section
Dial (916) 255-1136 if you are calling from outside California.
Dial (800) 618-6942 if you are calling from within California.
Dial (800) 852-7550 for ID number issuance after hours for emergency or spill.

U.S. EPA (Federal)
Region 9 – San Francisco
Dial (415) 495-8895 for a federal ID number.
Dial (415) 947-4400 for ID number issuance after hours for emergency or spill.