Again, I was employed by an employer who had a Federal contract with Federal Government.
I had 60 days to produce a passport or Birth Certificate, or else I would not be able to work on the Federal Contract.
Very simple requirement, for a US citizen born in America. A Photo Copy WOULD NOT DO, it had to be an original Certified copy. Cost me 30 bucks, and I did it over the Internet, plus shipping/mail cost.
A Tough requirement, for a NON Citizen to comply, as it was meant to be.
I have worked for Homeland Security on a government contract. There was a requirement to use a RAPIDGATE kiosk to enter personal information and to submit fingerprints. There was absolutely never a requirement to supply a birth certificate.