Staying on course The role of the audit committee in corporate. governance is more important than ever. As an. audit committee member, your ongoing journey. will be filled with many stops along the way. The U.S. Congress, Securities and Exchange Commission (SEC), New York Stock Exchange (NYSE), NASDAQ and Public Company.
Quick Answer. A tire with a treadwear rating of 320 should last for approximately 40,000 miles. This is a lower-middle level treadwear rating. Tires with a high-end rating of over 500 should deliver approximately 80,000 miles. Keep Learning.
For the most accurate use of this system, one should compare tires, and their scores, only to tires made by the same manufacturer. Treadwear The rating for treadwear is a relative score given to a tire as an estimate of longevity. It is not a projected estimate of the mileage or tread life. Scores are determined by tire wear in closely controlled driving conditions. The rating for treadwear is given numerically, and is made in comparison to a reference tire given a 100. A tire that scores a 400 in treadwear should last twice as long as a tire with a 200. A comparable tire, made by a different manufacturer, may be given a score of 300.To reiterate; the scores for a comparable tire may vary from brand to brand.