Something Blue needs to have enough room to park, and there must be plenty of room for both the truck and trailer to pull through and/or turn around. Level and flat ground is preferred. The trailer is 10 feet long, 6 feet wide and 7 feet tall, so a clear space of around 20 feet in length is ideal.
It is also preferred that sufficient electricity is provided with a standard 110 plug, but a generator can be used if need be (advanced notice and a small fee required).
Always contact your venue to check their rules on drive-up mobile bars. If permits are needed for Something Blue to be present at the chosen location, it is up to the client to provide the permit.