Association of Car Rental Industry Systems Standards

ACRISS was formed in 1989 by Avis, Budget, Europcar and Hertz.^[1] In 1992, ACRISS was reconstituted as a European economic interest grouping.^[2]

Current ACRISS members include Alamo, Avis, Budget, Enterprise, Europcar, Hertz, Maggiore, Blacklane, Car Rental Gateway, Amadeus, fr:Karhoo, GroundScope, Rentalcars.com, Sabre, TaxiTender, Travelport, Mycab, National Car Rental, Payless, Dollar, Discover Cars, Travelport, and Skyscanner (joined May 2025).^[3][4]

The objectives of ACRISS are "to develop clear common standards for Car Rental services and Transfers (Vehicle with Driver Service Industry) in Europe, Middle East & Africa."^[2][5] ACRISS has developed standardised codes for classifying cars (including the optional equipment that is fitted), optional extras, airport locations and locations in general.^[6]

The car classification code has been created to allow car rental companies to communicate the characteristics of a car using a standardised system, in order to prevent misleading information when booking a rental car.^[5] The code describes the category, body style, transmission, driven wheels (FWD, RWD or AWD), fuel type (or electric/hybrid vehicle) and whether air-conditioning is fitted.^{[7][8][9][10][11]}

Examples:

• IDAD – Intermediate category, 4/5 doors, automatic transmission, diesel engine, air-conditioning fitted
• ECMQ – Economy category, 2/4 doors, manual transmission, diesel engine, no air-conditioning
• PCAV – Premium category, 2/4 doors, automatic transmission, petrol engine, air-conditioning fitted
• IGDV – Intermediate Crossover vehicle, automatic transmission, petrol engine, air-conditioning fitted

• Euro Car Segment