Five types of security clearances exist at DOE: a Q clearance, L clearance, TS clearance, S clearance, and C clearance.
https://www.energy.gov/sites/prod/files/2019/01/f58/Chapter-3-Personnel-Security-01042019.pdf
Anyone else find this interesting:
Q "When does a bird sing?"
https://en.wikipedia.org/wiki/Songbird_(film)
https://www.gao.gov/assets/110/102429.pdf
That is a lot of "Q" clearances
https://www.intelligence.senate.gov/sites/default/files/documents/QFR%20Responses%20from%20Phalen%20OPM%20NBIB.pdf
>>12203204 (/pb)