If any agency or labor organization is charged by any person with having engaged in or engaging in an unfair labor practice, the General Counsel shall investigate the charge and may issue and cause to be served upon the agency or labor organization a complaint. In any case in which the General Counsel does not issue a complaint because the charge fails to state an unfair labor practice, the General Counsel shall provide the person making the charge a written statement of the reasons for not issuing a complaint.
(2) Any complaint under paragraph (1) of this subsection shall contain a notice—
Except as provided in subparagraph (B) of this paragraph, no complaint shall be issued based on any alleged unfair labor practice which occurred more than 6 months before the filing of the charge with the Authority.
(B) If the General Counsel determines that the person filing any charge was prevented from filing the charge during the 6-month period referred to in subparagraph (A) of this paragraph by reason of—
any concealment which prevented discovery of the alleged unfair labor practice during the 6-month period,
the General Counsel may issue a complaint based on the charge if the charge was filed during the 6-month period beginning on the day of the discovery by the person of the alleged unfair labor practice.
The General Counsel may prescribe regulations providing for informal methods by which the alleged unfair labor practice may be resolved prior to the issuance of a complaint.
The Authority (or any member thereof or any individual employed by the Authority and designated for such purpose) shall conduct a hearing on the complaint not earlier than 5 days after the date on which the complaint is served. In the discretion of the individual or individuals conducting the hearing, any person involved may be allowed to intervene in the hearing and to present testimony. Any such hearing shall, to the extent practicable, be conducted in accordance with the provisions of subchapter II of chapter 5 of this title, except that the parties shall not be bound by rules of evidence, whether statutory, common law, or adopted by a court. A transcript shall be kept of the hearing. After such a hearing the Authority, in its discretion, may upon notice receive further evidence or hear argument.
(7) If the Authority (or any member thereof or any individual employed by the Authority and designated for such purpose) determines after any hearing on a complaint under paragraph (5) of this subsection that the preponderance of the evidence received demonstrates that the agency or labor organization named in the complaint has engaged in or is engaging in an unfair labor practice, then the individual or individuals conducting the hearing shall state in writing their findings of fact and shall issue and cause to be served on the agency or labor organization an order—
including any combination of the actions described in subparagraphs (A) through (C) of this paragraph or such other action as will carry out the purpose of this chapter.
If the individual or individuals conducting the hearing determine that the preponderance of the evidence received fails to demonstrate that the agency or labor organization named in the complaint has engaged in or is engaging in an unfair labor practice, the individual or individuals shall state in writing their findings of fact and shall issue an order dismissing the complaint.
In connection with any matter before the Authority in any proceeding under this section, the Authority may request, in accordance with the provisions of section 7105(i) of this title, from the Director of the Office of Personnel Management an advisory opinion concerning the proper interpretation of rules, regulations, or other policy directives issued by the Office of Personnel Management.