; (D) by inserting after paragraph (3) the following: (4) If the Board finds that, in an election under paragraph (1), a majority of the valid votes cast in a unit appropriate for purposes of collective bargaining have been cast in favor of representation by the labor organization, the Board shall certify the labor organization as the representative of the employees in such unit and shall issue an order requiring the employer to collectively bargain with the labor organization in accordance with section 8(d). This order shall be deemed an order under section 10(c) of the Act, without need for a determination of an unfair labor practice. (5) (A) If the Board finds that, in an election under paragraph (1), a majority of the valid votes cast in a unit appropriate for purposes of collective bargaining have not been cast in favor of representation by the labor organization, the Board shall dismiss the petition, subject to subparagraphs (B) and (C). (B) In any case in which a majority of the valid votes cast in a unit appropriate for purposes of collective bargaining have not been cast in favor of representation by the labor organization and the Board determines that the election should be set aside because the employer has committed a violation of this Act or otherwise interfered with a fair election, and the employer has not demonstrated that the violation or other interference is unlikely to have affected the outcome of the election, the Board shall, without ordering a new or rerun election, certify the labor organization as the representative of the employees in such unit and issue an order requiring the employer to bargain with the labor organization in accordance with section 8(d) if, at any time during the period beginning 1 year preceding the date of the commencement of the election and ending on the date upon which the Board makes the determination of a violation or other interference, a majority of the employees in the bargaining unit have signed authorizations designating the labor organization as their