There are a number of NYC Transit bus depots throughout the city, including the Michael J. Quill Bus Depot on West 41st St. and 11th Avenue, the Mother Clara Bus Depot in Harlem, and the Casey Stengel Bus Depot in Flushing. Our source formerly at the MTA tells us that each NYCT bus has a decal that identifies its home depot.
Parking is a scarcity for non-NYCT buses. The Department of Transportation forbids charter buses from parking in Lower Manhattan for more than three hours, so there’s no long-term shelter available for these vehicles. They may park in private lots or stay for less than three hours in certain approved layover locations mainly on the west side.