Hazardous Waste Emergency identification (ID) numbers are issued for emergencies involving hazardous waste, such as a spill or a clandestine lab cleanup. These ID numbers are generally only given to government agencies or their contractors.

There are two categories of emergency ID numbers issued:

Emergency federal EPA ID numbers are used for 100 kg or more of RCRA hazardous waste, and/or 1 kg or more of acutely hazardous waste.

Emergency State ID numbers are issued for all other hazardous waste.

To obtain an emergency ID number please call one of the following numbers:

Normal Business Hours (Monday – Friday 9 am – 4 pm). Please call DTSC at (800) 618-6942 if calling from within the U.S.

After Hours. Please call the California Office of Emergency Services (OES) at (800) 852-7550 and request to speak to a DTSC Emergency Response Duty Officer (ERDO).