That's why I was refused CLEARANCE
for a government research fellowship...
The Big Bang Theory Season 2, Episode 1
Howard, the person at fault for you
not getting a security CLEARANCE is me.
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
She doesn't exactly have CLEARANCE.
The Big Bang Theory Season 2, Episode 8
Listen,
I have to get a security CLEARANCE...
The Big Bang Theory Season 4, Episode 7