Section 531.6 - Effects of collective bargaining agreements(a) The cost of board, lodging, or other facilities shall not be included as part of the wage paid to any employee to the extent it is excluded therefrom under the terms of a bona fide collective bargaining agreement applicable to the particular employee.(b) A collective bargaining agreement shall be deemed to be "bona fide" when it is made with a labor organization which has been certified pursuant to the provision of section 7(b)(1) or 7(b)(2) of the Act by the National Labor Relations Board, or which is the certified representative of the employees under the provisions of the National Labor Relations Act, as amended, or the Railway Labor Act, as amended.(c) Collective bargaining agreements made with representatives who have not been so certified will be ruled on individually upon submission to the Administrator.