In 2370, Commander Donald Kaplan, the ship's chief engineer, regularly engaged in power conversion efficiency contests with Geordi La Forge, chief engineer of the USS Enterprise-D. (TNG: "Force of Nature")
In 2375, Commander Chakotay claimed the Intrepid was on a three-year assignment patrolling the Romulan Neutral Zone while posing as Commander Jason Hayek of the Intrepid on stardate 52136 when he infiltrated a simulation of Starfleet Headquarters created by Species 8472. (VOY: "In the Flesh")
The Intrepid mentioned in "Force of Nature" is most likely the NCC-74600, considering that it was challenging the warp core efficiency rating of a top-of-the-line Galaxy-class starship one year before the launch of another Intrepid-class vessel, the USS Voyager. The ship's registry was not mentioned onscreen, but is from the production writings of Rick Sternbach, designer of the Intrepid-class. The name and registry eventually showed up on-screen in Star Trek: Nemesis, where Sternbach created the visuals for the production.
This vessel may have been named for the 23rd century Federation starship USS Intrepid, which was destroyed in 2268; she might also have been named for the Template:ShipClass USS Intrepid, a starship in operation in the 2340s.
This vessel also appeared in the novels Crossover (Pocket TNG) and Demons of Air and Darkness (Pocket DS9, Star Trek: Gateways series). In Crossover, the ship was commanded by Captain Terence Riley, son of Kevin Riley, and incorrectly referred to as Template:ShipClass (which is impossible because this ship was in existence at the time of the novel, 2370). The Gateways installment has Intrepid in a fleet alongside the Deep Space 9 crew, under Captain Walter Emick. The vessel and its Captain are also mentioned in Articles of the Federation.