Double-decker bus
With the exception of coaches, double-decker buses are uncommon in the United States. Many private operators, such as Megabus, run by Coach USA, employs double-decker buses on its busier intercity routes.
GO Transit
The first two batches of double deckers have a height of , too tall to meet many height standards set by the provincial Ministry of Transportation. Thus, they are restricted to routes which avoid low bridges and underpasses. In particular, they are found exclusively on routes on the Highway 407 and Highway 403 corridors, providing service between Peel and York Regions.