Crewmember departing on same vessel of arrival
INA section 101(a)(15)(D) 8 CFR 214.2(d)
May be employed only in a capacity on the vessel or aircraft of arrival, or of the same transportation company. May perform crewmember duties through stopovers on international flights for any U.S. carrier where such flights uses a single aircraft and has an origination or destination point outside the United States.
Maximum of 29 days.
Extension of stay not permitted.