On-Road Heavy-Duty Certification Program: California Test Procedures Fill Pipes 2015+ Specifications For Fill Pipes And Openings of 2015 And Subsequent Model Motor Vehicle Fuel Tanks Categories Topics On-Road Heavy-Duty Vehicles Programs On-Road Heavy-Duty Certification Program Type Information Contact Compression Ignition and Heavy-Duty Certification Email cihd@arb.ca.gov Phone (800) 242-4450 2015 Model Year and Subsequent gasoline or alcohol-fueled heavy-duty vehicles sold, offered for sale, or registered in California shall comply with these specifications for fill pipes and openings of motor vehicles fuel tanks. Documents Specifications For Fill Pipes And Openings of 2015 And Subsequent Model Motor Vehicle Fuel Tanks ADA__CATP -- FILLPIPE -- 2015+ -- 20120322.PDF · 78 KB Related Resources HD/OFCI Production Report Templates Enhanced Electric and Fuel Cell Vehicle Certification Freight Contractor, Broker-Clean Truck Check Requirements