What is the maximum height allowed for an ICC bumper from the road surface?

The maximum height allowed for an ICC (Interstate Commerce Commission) bumper from the road surface is 22 inches. This specification is crucial because it helps ensure that trailers are compatible with the standardization of truck and trailer heights used across the transportation industry. The standard height for ICC bumpers is designed to improve safety by minimizing the risk of collisions during rear-end impacts, as a correctly positioned bumper can absorb some of the energy from an impact and help prevent under-riding by smaller vehicles. The 22-inch specification balances safety considerations with operational needs, ensuring that trailers can effectively interface with various tractors without compromising performance or safety.

Other height options do not conform to the accepted safety regulations and standards set forth for ICC bumpers. Any height below or above 22 inches could potentially lead to safety issues in the event of a crash and may not comply with industry regulations.