; and (2) by adding at the end the following: (b) (1) Participation in an authorized compensation plan The employer of a master or member of the crew of a vessel may participate in an authorized compensation plan under the Longshore and Harbor Workers’ Compensation Act ( 33 U.S.C. 901 et seq.). An employer that participates in such a plan is subject to such Act. (2) If an employer participates in an authorized compensation plan under such Act under paragraph (1)— (A) a master or crew member employed by that employer shall be considered to be an employee for the purposes of that Act