I think so.. stamped in to the "hat" (where the wheel mates to the disc) on the stock rotor disc.
from the book:
"Front disc minimum thickness:
⇒ New 24.9 - 25.1 mm (0.980 ? 0.988 in)
⇒ Service limit 22.0 mm (0.866 in)
Rear disc minimum thickness:
⇒ New 12.5 ? 12.7 mm (0.492 ? 0.500 in)
⇒ Service limit 11.7 mm (0.461 in)"
The aftermarket might vary a little. but a quick search, show's roughly the same #'s for max runout (= min. thickness).
Hope it helps.