Upon completion of its proceedings, the Board shall expeditiously decide the grievance on the basis of the record of proceedings. In each case the decision of the Board shall be in writing, and shall include findings of fact and a statement of the reasons for the decision of the Board.
Except as provided in subsection (d), decisions of the Board under this subchapter shall be final, subject only to judicial review as provided in section 4140 of this title.
The Board shall, with respect to any grievance based on an alleged violation of a law, rule, regulation, or policy directive referred to in section 4131(a)(1)(H) of this title, apply the substantive law that would be applied by the Equal Employment Opportunity Commission if a charge or claim alleging discrimination under such law, rule, regulation, or policy directive had been filed with the commission.1