Transport i bezpieczeństwo · 24.05.1995

Consumer Information Regulations Uniform Tire Quality Grading Standards

This notice proposes to amend the Uniform Tire Quality Grading Standards to: 1. Revise treadwear testing procedures to maintain the base course wear rate of course monitoring tires at its current value. That revision should eliminate treadwear grade inflation, reduce testing expenses, and reduce the adverse environmental consequences of operating testing convoys; 2. Create a new traction grading category of ``AA'' in addition to the current traction grades of A, B, and C to differentiate those tires with the highest traction characteristics from lower performing tires; 3. Replace the temperature resistance grade with a rolling resistance/fuel economy grade. This change would provide a measure of a key fuel economy characteristic of tires, and responds to the President's Climate Change Action Plan.