As is the case with all the little goodies the FAA grants, it's a certificate.

A certificate which grants you license to fly. Even the FAA calls it a
license in some of their literature.

Jose
--
Quantum Mechanics is like this: God =does= play dice with the universe,
except there's no God, and there's no dice. And maybe there's no universe.
for Email, make the obvious change in the address.