Taxation : double income : protocol between the United States of America and Luxembourg amending the Convention of April 3, 1996, signed at Luxembourg, May 20, 2009 ; entered into force September 9, 2019 with exchange of notes.
Protocol between the United States of America and Luxembourg amending the Convention of April 3, 1996, signed at Luxembourg, May 20, 2009 ; entered into force September 9, 2019 with exchange of notes