[11] The faction engages in war against the Brotherhood of Steel,[12] and actively fights against Caesar's Legion for control over the Hoover Dam, which the NCR uses to provide themselves and civilians with power and water.

[3] In the 2024 television adaptation Fallout, the character Lee Moldaver (Sarita Choudhury) is depicted as an NCR leader seeking cold fusion in order to power the surrounding area.

[20][21] Following the NCR's rise in political power over California,[18][10][22] Shady Sands was completely destroyed by a nuclear bomb dropped by a Vault-Tec Corporation employee and Vault 33 Overseer Hank MacLean (Kyle MacLachlan).

[27] In 2017, a man cosplaying as a New California Republic character in Grande Prairie, Alberta, Canada, was arrested after members of the public mistook him for an individual carrying a bomb.

[32] In an interview with IGN, Bethesda executive producer Todd Howard responded by teasingly remarking "I don't think you've heard the last of the New California Republic."