i've seen cars with things falling off, and the first (and sometimes only) thing they check is the &%^$&^%$* belts. lame. i could see MAYBE the pro ranks having two year recert, but that's a whole other animal. my garage is replete with expired good-as- new belts. lame. i suspect the date gets punched upon sale. mine are always punched for the coming month or there abouts.