OBS_VALUE: US alien truck drivers may qualify for admission as B-1 visitors for business to pick up or deliver cargo traveling in the stream of international commerce. The initial period of stay granted by the B-1 visa is 1 to 6 months but it can be extended up to 6 months; maximum total amount of time permitted in B-1 status on any one trip is generally 1 year. Fore more information: http://www.cbp.gov/border-security/ports-entry/cargo-security/carriers/land-carriers/how 