NCR dogtag

Dogtags are a miscellaneous item in Fallout: New Vegas. They can be found on the NCR soldiers, similar to the holotags found on the Brotherhood of Steel members in Fallout 3. Unlike holotags, however, generic soldiers will always have their tags, rather than the tag spawning upon death.

Uses
You can get a recipe for a weapon called the Dog Tag Fist from Private Halford after rescuing him (or looting his body) during an unmarked quest at a cave in Guardian Peak. The Dog Tag Fist requires 20 NCR Dog Tags and 30 Repair to create.

Quartermaster Mayes at Camp Forlorn Hope will accept NCR dog tags. His tent can be found to the right of the Command Tent, he will reward you with 2 caps and NCR Fame per tag.

Speaking with Aurelius of Phoenix at Cottonwood Cove gives you the opportunity to turn in dog tags for a reward of 10 caps each or ammo and supplies when you have barter of 35 and Caesar's Legion Fame.

Characteristics

 * Appear as run-of-the-mill dogtags.
 * The tags are weightless and count as quest items, making them impossible to remove without console commands.

Locations

 * An easy place to find these without losing reputation would be on the dead NCR soldiers in the Camp Guardian caves or by pickpocketing any NCR soldiers.
 * Those with the Mister Sandman perk can kill the troopers in their cots.
 * Another way to get these without any reputation loss is; in Nelson after a skirmish occurs any NCR soldiers left alive will congregate at the campfire near the crucified soldiers. Place some C4 near them and use a Detonator from a hidden position. This can net you up to ten Dog tags in one visit.
 * Over a dozen NCR Dogtags can be found inside Camp McCarran. The first NCR Trooper visible when having entered the camp has one NCR Dogtag, and the NCR Troopers in the Camp McCarran Terminal building and Camp McCarran Concourse each have one NCR Dogtag.
 * You can also get some dogtags from the NCR soldiers on the strip. Just follow a soldier and when he/she stops walking, pickpocket him/her (this results in losing Karma).