PUBLIC LAWS-CH. 120-JUNE 23,1947 Investigation of pe- tition; hearing. Election by secret ballot. Poat, p. 147. Petition to make agreement with em- ployer. "(c) (1) Whenever a petition shall have been filed, in accordance with such regulations as may be prescribed by the Board- "(A) by an employee or group of employees or any individual or labor organization acting in their behalf alleging that a substan- tial number of employees (i) wish to be represented for collective bargaining and that their employer declines to recognize their representative as the representative defined in section 9 (a), or (ii) assert that the individual or labor organization, which has been certified or is being currently recognized by their employer as the bargaining representative, is no longer a representative as defined in section 9 (a); or "(B) by an employer, alleging that one or more individuals or labor organizations have presented to him a claim to be recognized as the representative defined in section 9 (a); the Board shall investigate such petition and if it has reasonable cause to believe that a question of representation affecting commerce exists shall provide for an appropriate hearing upon due notice. Such hearing may be conducted by an officer or employee of the regional office, who shall not make any recommendations with respect thereto. If the Board finds upon the record of such hearing that such a question of representation exists, it shall direct an election by secret ballot and shall certify the results thereof. "(2) In determining whether or not a question of representation affecting commerce exists, the same regulations and rules of decision shall apply irrespective of the identity of the persons filing the petition or the kind of relief sought and in no case shall the Board deny a labor organization a place on the ballot by reason of an order with respect to such labor organization or its predecessor not issued in conformity with section 10 (c). "(3) No election shall be directed in any bargaining unit or any subdivision within which, in the preceding twelve-month period, a valid election shall have been held. Employees on strike who are not entitled to reinstatement shall not be eligible to vote. In any election where none of the choices on the ballot receives a majority, a run-off shall be conducted, the ballot providing for a selection between the two choices receiving the largest and second largest number of valid votes cast in the election. "(4) Nothing in this section shall be construed to prohibit the waiv- ing of hearings by stipulation for the purpose of a consent election in conformity with regulations and rules of decision of the Board. "() In determining whether a unit is appropriate for the purposes specified in subsection (b) the extent to which the employees have organized shall not be controlling. '(d) Whenever an order of the Board made pursuant to section 10 (c) is based in whole or in part upon facts certified following an investigation pursuant to subsection (c) of this section and there is a petition for the enforcement or review of such order, such certification and the record of such investigation shall be included in the transcript of the entire record required to be filed under section 10 (e) or 10 (f), and thereupon the decree of the court enforcing, modifying, or setting aside in whole or in part the order of the Board shall be made and entered upon the pleadings, testimony, and proceedings set forth in such transcript. "(e) (1) Upon the filing with the Board by a labor organization, which is the representative of employees as provided in section 9 (a), of a petition alleging that 30 per centum or more of the employees within a unit claimed to be appropriate for such purposes desire to authorize such labor organization to make an agreement with the employer of such employees requiring membership in such labor organ- [61 STAT.