The "C" visa is intended for those individuals whose travel takes them through the U.S., without intending to actually enter the U.S.
The specific visa codes are:
Note: The Transit without Visa program has been suspended until further notice. See the related link on this page.
A foreign national serving in a capacity required for normal operations and service on board a vessel or aircraft. Crewmen are admitted for twenty-nine days, with no extensions. Two categories of crewmen are defined in the INA: D1, departing from the United States with the vessel or aircraft on which he arrived or some other vessel or aircraft; and D2, departing from Guam with the vessel on which he arrived.
This section focuses on articles and reports related to C and D visa from government agencies such as the USCIS, DOS, DHS, CBP and ICE.