She doesn't exactly have CLEARANCE.
The Big Bang Theory Season 2, Episode 8
Howard, the person at fault for you
not getting a security CLEARANCE is me.
The Big Bang Theory Season 4, Episode 7
That's why I was refused CLEARANCE
for a government research fellowship...
The Big Bang Theory Season 2, Episode 1
Guess who didn't get security CLEARANCE
to work on the giant space laser?
The Big Bang Theory Season 4, Episode 7
He got it at the mall on CLEARANCE.
Move, move, move!
The Big Bang Theory Season 6, Episode 24