NHTSA Proposes Changes to Safety Standards for RV Trailer Tires

The National Highway Traffic Safety Administration is proposing to amend Federal Motor Vehicle Safety Standard No. 110 on tires, rims, and motor home/ recreational vehicle trailer load carrying capacity for vehicles with a Gross Vehicle Weight Rating of 4,536 kg (10,000 lbs.) or less. The proposed rule would add a paragraph saying that special trailer (ST) tires are permitted to be installed on new trailers with a GWVR under 4,536 kg. It would also exclude these trailers from a vehicle testing requirement that the tire must remain on its rim when brought to a controlled stop from 97 km/h (60 mph) after a sudden loss of pressure. Comments on the proposed rule are due by May 13.