to be transferred to this appropriation from the Federal Hospital Insurance Trust Fund and the Federal Supplementary Medical Insurance Trust Fund. National council on disability Salaries and expenses For expenses necessary for the National Council on Disability as authorized by title IV of the Rehabilitation Act of 1973, $3,200,000. National labor relations board Salaries and expenses For expenses necessary for the National Labor Relations Board to carry out the functions vested in it by the Labor-Management Relations Act, 1947, and other laws, $249,000,000: Provided , That no part of this appropriation shall be available to organize or assist in organizing agricultural laborers or used in connection with investigations, hearings, directives, or orders concerning bargaining units composed of agricultural laborers as referred to in section 2(3) of the Act of July 5, 1935, and as amended by the Labor-Management Relations Act, 1947, and as defined in section 3(f) of the Act of June 25, 1938, and including in said definition employees engaged in the maintenance and operation of ditches, canals, reservoirs, and waterways when maintained or operated on a mutual, nonprofit basis and at least 95 percent of the water stored or supplied thereby is used for farming purposes. Administrative provisions 406. None of the funds provided by this Act or previous Acts making appropriations for the National Labor Relations Board may be used to issue any new administrative directive or regulation that would provide employees any means of voting through any electronic means in an election to determine a representative for the purposes of collective bargaining. 407. (a) None of the funds made available by this Act may be used to enforce the National Labor Relations Act ( 29 U.S.C. 152 ) against any Indian Tribe, including any enterprise or institution owned and operated by an Indian Tribe and located on its Indian lands. (b) For purposes of this section— (1) the term ‘‘Indian Tribe’’ means any Indian Tribe, band, nation, pueblo,