404.1037—Work on or in connection with a non-American vessel or aircraft.
If you work as an employee within the United States on or in connection with (as explained in § 404.1004(b)(8)) a vessel or aircraft that is not an American vessel (as defined in § 404.1004(b)(3)) or American aircraft (as defined in § 404.1004(b)(2) ), your work is excluded from employment if—
(a)
You are not a citizen of the United States or your employer is not an American employer (as defined in § 404.1004(b)(1) ); and
(b)
You are employed on and in connection with (as explained in § 404.1004(b)(7)) the vessel or aircraft when outside the United States.