
Listen,
I have to get a security CLEARANCE...
The Big Bang Theory Season 4, Episode 7

I'm in breach of my security CLEARANCE.
I'm going to prison.
The Big Bang Theory Season 10, Episode 20

He got it at the mall on CLEARANCE.
Move, move, move!
The Big Bang Theory Season 6, Episode 24

Guess who didn't get security CLEARANCE
to work on the giant space laser?
The Big Bang Theory Season 4, Episode 7

Howard, the person at fault for you
not getting a security CLEARANCE is me.
The Big Bang Theory Season 4, Episode 7