(a) Petition for certification or decertification. A petition for investigation of a question concerning representation of employees under paragraphs (1)(A)(i) and (1)(B) of Section 9(c) of the Act (hereinafter called a petition for certification) may be filed by an employee or group of employees or any individual or labor organization acting in their behalf or by an employer. A petition under paragraph (1)(A)(ii) of Section 9(c) of the Act, alleging that the individual or labor organization which has been certified or is being currently recognized as the bargaining representative is no longer such representative (hereinafter called a petition for decertification), may be filed by any employee or group of employees or any individual or labor organization acting in their behalf. Petitions under this section shall be in writing and signed, and either shall be sworn to before a notary public, Board agent, or other person duly authorized by law to administer oaths and take acknowledgments or shall contain a declaration by the person signing it, under the penalty of perjury, that its contents are true and correct (see 28 U.S.C. 1746). One original of the petition shall be filed, and a copy served on all parties named in the petition. A person filing a petition by facsimile pursuant to § 102.5(e) shall also file an original for the Agency's records, but failure to do so shall not affect the validity of the filing by facsimile, if otherwise proper. A person filing a petition electronically pursuant to § 102.5(c) need not file an original. Except as provided in § 102.72, such petitions shall be filed with the Regional Director for the Region wherein the bargaining unit exists, or, if the bargaining unit exists in two or more Regions, with the Regional Director for any of such Regions. A certificate of service on all parties named in the petition shall also be filed with the Regional Director when the petition is filed. Along with the petition, the petitioner shall serve the Agency's description of the procedures in representation cases and the Agency's Statement of Position form on all parties named in the petition. Prior to the transfer of the record to the Board, the petition may be withdrawn only with the consent of the Regional Director with whom such petition was filed. After the transfer of the record to the Board, the petition may be withdrawn only with the consent of the Board. Whenever the Regional Director or the Board, as the case may be, approves the withdrawal of any petition, the case shall be closed.

(b) Petition for clarification of bargaining unit or petition for amendment of certification. A petition for clarification of an existing bargaining unit or a petition for amendment of certification, in the absence of a question of representation, may be filed by a labor organization or by an employer. Where applicable the same procedures set forth in paragraph (a) of this section shall be followed.