(a) Exclusive representative has filed related unfair labor practice charge or grievance alleging an unfair labor practice. Except for proposals or provisions that are the subject of an agency's compelling need claim under 5 U.S.C. 7117(a)(2), the Authority will dismiss a petition for review when an exclusive representative files an unfair labor practice charge pursuant to part 2423 of this subchapter or a grievance alleging an unfair labor practice under the parties' negotiated grievance procedure, and the charge or grievance concerns issues directly related to the petition for review filed pursuant to this part. The dismissal will be without prejudice to the right of the exclusive representative to refile the petition for review after the unfair labor practice charge or grievance has been resolved administratively, including resolution pursuant to an arbitration award that has become final and binding. No later than thirty (30) days after the date on which the unfair labor practice charge or grievance is resolved administratively, the exclusive representative may refile the petition for review, and the Authority will determine whether resolution of the petition is still required. For purposes of this subsection, a grievance is resolved administratively when:

(1) The exclusive representative withdraws the grievance;

(2) The parties mutually resolve the grievance;

(3) An arbitrator has issued an award resolving the grievance, and the 30-day period under 5 U.S.C. 7122(b) has passed without an exception being filed; or

(4) An arbitrator has issued an award resolving the grievance, a party has filed an exception to that award, and the Authority has issued a decision resolving that exception.

(b) Exclusive representative has not filed related unfair labor practice charge or grievance alleging an unfair labor practice. The petition will be processed as follows:

(1) No bargaining obligation dispute exists. The Authority will resolve the petition for review under the procedures of this part.

(2) A bargaining obligation dispute exists. The exclusive representative may have an opportunity to file an unfair labor practice charge pursuant to part 2423 of this subchapter or a grievance under the parties' negotiated grievance procedure concerning the bargaining obligation dispute, and, where the exclusive representative pursues either of these courses, the Authority will proceed in accord with paragraph (a) of this section. If the exclusive representative does not file an unfair labor practice charge or grievance concerning the bargaining obligation dispute, then the Authority will proceed to resolve all disputes necessary for disposition of the petition unless, in its discretion, the Authority determines that resolving all disputes is not appropriate because, for example, resolution of the bargaining obligation dispute under this part would unduly delay resolution of the negotiability dispute, or the procedures in another, available administrative forum are better suited to resolve the bargaining obligation dispute.

When necessary to resolve disputed issues of material fact in a negotiability or bargaining obligation dispute, or when it would otherwise aid in decision making, the Authority, or its designated representative, may, in its discretion:

(a) Direct the parties to provide specific documentary evidence;

(b) Direct the parties to provide answers to specific factual questions;

(c) Refer the matter to a hearing pursuant to 5 U.S.C. 7117(b)(3) or (c)(5); or

(d) Take any other appropriate action.

(a) Responsibilities of the exclusive representative. The exclusive representative has the burden of explaining the meaning, operation, and effects of the proposal or provision; and raising and supporting arguments that the proposal or provision is within the duty to bargain, within the duty to bargain at the agency's election, or not contrary to law, respectively.

(b) Responsibilities of the agency. The agency has the burden of explaining the agency's understanding of the meaning, operation, and effects of the proposal or provision, if the agency disagrees with the exclusive representative's explanations; and raising and supporting arguments that the proposal or provision is outside the duty to bargain or contrary to law, respectively.

(c) Responsibilities to sufficiently explain. Each party has the burden to give sufficiently detailed explanations to enable the Authority to understand the party's position regarding the meaning, operation, and effects of a proposal or provision. A party's failure to provide such explanations may affect the Authority's decision in a manner that is adverse to the party.

(d) Failure to raise, support, or respond to arguments.

(1) Failure to raise and support an argument may, in the Authority's discretion, be deemed a waiver of such argument. Absent good cause:

(i) Arguments that could have been but were not raised by an exclusive representative in the petition for review, or made in its response to the agency's statement of position, may not be made in this or any other proceeding; and

(ii) Arguments that could have been but were not raised by an agency in the statement of position, or made in its reply to the exclusive representative's response, may not be raised in this or any other proceeding.

(2) Failure to respond to an argument or assertion raised by the other party may, in the Authority's discretion, be treated as conceding such argument or assertion.

(e) Failure to participate in conferences; failure to respond to Authority orders. Where a party fails to participate in a post-petition conference pursuant to § 2424.23, a direction or proceeding under § 2424.31, or otherwise fails to provide timely or responsive information pursuant to an Authority order, including an Authority procedural order directing the correction of technical deficiencies in filing, the Authority may, in addition to those actions set forth in paragraph (d) of this section, take any other action that, in the Authority's discretion, it deems appropriate, including dismissal of the petition for review (with or without prejudice to the exclusive representative's refiling of the petition for review), and granting the petition for review and directing bargaining or rescission of an agency head disapproval under 5 U.S.C. 7114(c) (with or without conditions).