A large Parliament-class Starfleet ship that specialises in major engineering projects and joins the Cerritos in 2380 to demolish an unstable moon above Mixtus III, in the episode Cupid's Errant Arrow.
The USS Vancouver is a Parliament-class starship seen in the first-season Star Trek: Lower Decks episode Cupid's Errant Arrow. She is bigger and far better equipped than the Cerritos and is given the fleet's most demanding engineering work. Her shuttles are named after districts of the city of Vancouver.
In 2380 the two ships work together to implode a moon whose decaying orbit threatens Mixtus III. Boimler's girlfriend, Lieutenant Barbara Brinson, serves aboard, and Mariner spends the episode trying to prove that she is some kind of impostor, when the real problem is a parasite attached to Boimler.
Tendi and Rutherford, dazzled by the Vancouver's equipment, compete to win a new T-88 diagnostic scanner from Lieutenant Commander Ron Docent. He turns out to want to transfer them aboard so that he can escape to the quieter Cerritos.