ID Number Inactive?
To reactivate your ID number, complete either the DTSC Form 1358 (state ID number) or the US EPA Form 8700-12 (federal EPA ID number).
Call Center Hours
Standard Business Hours
Monday to Friday: 9:00 AM to 3:00 PM PST (except state holidays)
Upcoming Special Hours and Closures
Thursday, March 28, 2024
Open: 9:00 AM - 1:45 PM | Closed: 1:45 PM - 3:00 PM
Monday, April 1, 2024
Closed: 9:00 AM - 3:00 PM