A person employed as an officer or member of a crew on a ship who otherwise has dual coverage under the social security taxation and coverage laws of both countries will only have coverage under the laws of the country whose flag the ship flies.

A ship is considered to fly the flag of the United States if it is an American vessel as defined in section 210(c) of the Act. Under that definition, an American vessel is one that is documented or numbered under U.S. law or one that is not documented or numbered under the law of any country, if its crew is employed solely by one or more U.S. citizens or residents, or corporations organized under Federal or State law.

A person employed as an officer or member of the crew on an aircraft who would otherwise have coverage under the laws of both the United States and Austria, will have coverage only in the country where the employer has its headquarters.

EXCEPTION: A person sent by an Austrian air transport organization to work as ground personnel in the United States will have coverage only under Austrian laws, regardless of the length of transfer.

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  RS 01901.030 - RS 01901.070, Coverage of Employment Within and Outside the United States

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  RS 01901.150 Employment on American Vessels and American Aircraft

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  RS 01901.170 Employment on Foreign Vessels or Foreign Aircraft

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  RS 01901.450 Coverage under International Totalization Agreements