In the United States, 20 states require some type of regular vehicle safety inspections. Make sure that your tires will not prevent your car from passing state inspection. Buy tires at the exact tread level you need.
States With Vehicle Safety Inspections
PA State Inspections
In Pennsylvania, cars are required to be inspected annually. Tire tread level is something that is checked and can prevent a car from passing inspection.
To pass in PA, the minimum tread depth required is 2/32 of an inch. However, please note that most experts agree that 4/32 is the lowest tread level that is considered to be safe.