Contacts We can helpCARB staff are ready to help you find what you're looking for.Contacts Keywords FuelsAlternative FuelsABCDEFGHIJKLMNOPQRSTUVWYZAll 15 results found for Medium and Heavy-Duty Vehicle Hotline Email8666DIESEL@arb.ca.govPhone(866) 634-3735 / (866) 6DIESEL Lys Mendez TitleDirector of CommunicationsEmaillys.mendez@arb.ca.govDivisionChair's Office Scott Monday Emailscott.monday@arb.ca.govPhone(916) 445-9319