; and (D) by striking In making such and all that follows through the employees affected . (d) Employee representation Section 9 of the National Labor Relations Act ( 29 U.S.C. 159 ) is amended— (1) by amending subsection (a) to read as follows: (a) (1) A representative designated or selected for the purposes of collective bargaining by the affirmative vote of a majority of all the employees in a unit appropriate for such purposes shall be the only collective representative of employees in such unit for the purposes of collective bargaining in respect to rates of pay, wages, hours of employment, or other conditions of employment for employees who elect to work under the terms and conditions of a collective-bargaining agreement negotiated by such collective representative. (2) A collective representative may represent only those employees who have affirmatively designated or selected such representation. Any employee designation or selection under this subsection shall be in writing, shall state in prominent type that such designation or selection is revocable at any time, shall be signed by the employee and delivered to both the employer and the collective representative, and shall provide in prominent type that no financial obligation can be imposed on account of the collective representation of the employee after the date of any revocation of collective representation. (3) The terms and conditions of employment set out in any collective-bargaining agreement negotiated by a collective representative designated or selected under this subsection shall apply only to those employees who affirmatively elect in writing to accept such terms and conditions of employment: Provided , That any individual employee or a group of employees who have elected to accept such terms and conditions of employment shall have the nonwaivable right at any time to present grievances to their employer and to have such grievances adjusted, without the intervention of the collective representative, as long as the adjustment is not