See also:

Tire tread
WARNING Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we recomm ...

Important safety notes
WARNING Ensure that the trunk lid/tailgate is closed when the engine is running and the vehicle is in motion. Among other dangers, deadly carbon monoxide (CO) may enter the vehicle interi ...

DOT, Tire Identification Number (TIN)
U.S. tire regulations prescribe that every manufacturer of new tires or retreader has to imprint a TIN in or on the sidewall of each tire produced. The TIN is a unique identification number. The ...