Where can you get a passport in fallout new Vegas?

Answer 1

You can buy a counterfeit one at Mick and Ralph's in Freeside. Alternatively, you can pass the credit check at the gate by simply having 2000 caps (you don't have to pay them, just possess them) or pass a science check to confuse the gatekeeping Securitron ( 80 in science I think). Personally, I never buy the passport, since I usually have that many caps at that point in the game.

Answer 2

talk to Ralph in mick and ralphs as him about an other services pass a speech check and pay 500 caps

Answer 3

main quest line, but if you go through the NCR building to the strip (need to be good with NCR) you never need one