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 3/9/2023 Documents Available SEPs 02.22.2023 AVAILABLE_SEPS_02.22.2023.PDF · 121 KB Related Resources PSIP Regulation Test Method 435 Automated License Plate Reader