SAE International has updated its trailer towing standard, J2807 - "Performance Requirements for Determining Tow-Vehicle Gross Combination Weight Rating and Trailer Weight Rating." The guidelines require vehicles to be tested under consistent conditions and parameters, giving consumers accurate information when comparing the trailer-towing capacities of similar models. Updates include revision of standard trailer weight range descriptions and clarification of test setup, ballast procedures, and test requirements in several areas. The standard can be applied to passenger cars, multipurpose passenger vehicles, and trucks with a gross vehicle weight rating of up to 13,000 lb. "We have a great committee with representatives from all over the auto and trailer industries who have put a lot of time and effort into developing standards for trailer weight ratings," said Robert J. Krouse, General Motors North America Trailering Engineer, BFO – Trailering, and SAE Tow Vehicle Trailer Rating Committee Chairman. "I think trailering customers will really benefit from this effort." The standard is available here.