This Internal Audit Charter establishes the framework of the OICâs Internal Audit Function (IA Function) so as to ensure that internal audit provides the Commissioner with added assurance and advice, independent from line management, on risk management, control and governance processes.
Replacing Tires by Mileage. The average tire can handle about 40,000 miles of travel before it starts becoming unsafe. That number depends on the vehicleâs weight, weather conditions, the types of surfaces you drive on, and how many nails you run over. In other words, donât take this number as a certainty. If your tires are reaching 40,000 miles, though, itâs time to take a close look at them. Theyâre probably due for a change.
When to Replace Tires. The penny test is a little outdated and to be safe you really should replace your tires when your tread depth gets below 2/16âs of an inch. Fortunately, 2/16âs of an inch is the exact distance on a quarter from the top of Washingtonâs head to the edge of the quarter.