SEP Projects Available for Funding Categories Topics Enforcement Programs Supplemental Environmental Projects (SEP) Type Reports Contact Supplemental Environmental Project (SEP) Email sep@arb.ca.gov Phone (279) 216-0965 Revised 1222/2023 Documents Available SEPs 12.22.2023 AVAILABLE_SEPS_12.22.2023.PDF · 54 KB Related Resources PSIP Regulation Test Method 435 Automated License Plate Reader