In the US it is a commonly held myth that the maximum pressure written on th TIRE is the one to pump it up to - it is not there as it is not in the UK and Ireland where this question has been asked.
Put your reg on here and it will tell you
http://www.kwik-fit.com/tyre-pressure-search.asp
PLEASE PLEASE DO NOT PUMP THEM UP TO THE PRESSURE ON THE TYRE - IT IS DANGEROUS TO YOUR WELL BEING AND THE TYRE WILL WEAR OUT IN THE CENTRE FAST AS IT WILL BE OVER PRESSURE.