Verification Procedure: Installers & Distributors Categories Topics Air Pollution, On-Road Heavy-Duty Vehicles Programs Verification Procedure for In-Use Strategies to Control Emissions from Diesel Engines Type Information Contact Email helpline@arb.ca.gov Phone (800) 242-4450 Information to assist installers and distributors of CARB's Verified Retrofit systems in obtaining information on requirements relating to the Regulation for the Verification Procedure for In-Use Strategies to Control Emissions from Diesel Engines.More information on the Verification of Diesel Emission Control Strategies can be found here: Verification Procedure for In-Use Strategies to Control Emissions from Diesel Engines | California Air Resources BoardPre-installation Compatibility Assessment (Datalogging Requirements)Warranty Obligations Swapping and Re-designation Considerations Advisories for Installers & DistributorsOff-road Retrofit Safety & ExemptionsCal-OSHA Installation RequirementsAuthorized Installers Related Resources On-Road Heavy-Duty Voucher Incentive Program (VIP) Guidelines Notice of Updates to the Carl Moyer Memorial Air Quality Standards Attainment Program Guidelines for the On-Road Heavy-Duty Voucher Incentive Program and Infrastructure Comment Letter on the Proposed Advanced Clean Fleets Regulation Submitted by the Otay Mesa Chamber of Commerce