maritime labor agreement

(A) means—

(i) a collective bargaining agreement between an employer subject to this part, or a group of such employers, and a labor organization representing employees in the maritime or stevedoring industry;

(ii) an agreement preparatory to such a collective bargaining agreement among members of a multi-employer bargaining group; or

(iii) an agreement specifically implementing provisions of such a collective bargaining agreement or providing for the formation, financing, or administration of a multi-employer bargaining group; but

(B) does not include an assessment agreement.