At one time, a person might hold both a TS and a Q clearance, but that duplication and cost is no longer required.

With such expressions of support, AEC issued Oppenheimer a Q clearance, granting him access to atomic secrets.

The questioning of Ms. Wampler had the ring of a cold-war thriller at times, with discussions of X divisions, Z passwords and Q clearances.

At this time he named and developed the criteria for the AEC's Q clearance.

Q clearance (Department of Energy)

Lawyers for The Progressive voluntarily underwent security reviews and were granted Q clearances that allowed them to access restricted nuclear information.

He held a Q clearance, top secret clearance, and was read into multiple special access programs.

He had a: permanent Q clearance, free to operate as he deemed necessary.

The DOE L clearance provides less access than the agency's Q clearance.

Mr. Lee still held a so-called "Q clearance," giving him access to American nuclear secrets.