For no reason I am posting this. This is a security clearance background check guide that I found from 1986. It is amazing the things that would disqualify a person in 1986 that is acceptable now. The company, HumRRO International in Alexandria, VA, is still in business today.
https://www.humrro.org/corpsite/contact-us/alexandria-va/
Have a look a the 1986 guide:
https://apps.dtic.mil/sti/pdfs/ADA176623.pdf
My how times have changed.