CARB’s Letter of Intent Further measures (including airports/aircraft) to improve air quality in South Coast Categories Topics Aircraft & Airports, Zero-Emission Transportation Programs Zero-Emission Aircraft Ground Operations, Zero-Emission Airport Ground Support Equipment Contact Aircraft Email aircraft@arb.ca.gov Phone (279) 842-9577 Documents CARB’s Letter of Intent CARB-LETTER-OF-INTENT-2019-CMP_UNSIGNED.PDF · 563 KB Related Resources California Aircraft and Airports Fact Sheet Testimonials States that have Adopted California's Vehicle Regulations