Counterfeit passport

The counterfeit passport is a miscellaneous and quest item

Gameplay
It is a passport allowing the Courier to enter the New Vegas Strip freely without having to meet any of the stipulations normally required for entrance.

Location
It can be bought from Ralph at Mick & Ralph's, a shop located close to Freeside's east gate. It costs 500 bottle caps, or 375 if a Barter check of 50 is passed. The passport can also be obtained as one of the King's favors at the end of the quest G.I. Blues.

Related quest

 * Papers, Please