http://www.nhtsa.dot.gov/cars/testing/ncap/Tires/Index.htm

Notes from nhtsa

An interesting use of flash to read tires

Importantly, the max PSI or the pressure that the gas pumps indicate is on the tire as well, although looking up your manual is the best.

This label may read "max press". It is also called Maximum permissible inflation pressure.

Well read it from the pros