OPINION OF THE COURT
The Ritz-Carlton Hotel Company (the “Hotel”) operating in Philadelphia, Pennsylvania, petitions for review of an order by the National Labor Relations Board (“NLRB” or “Board”) finding that the Hotel had committed an unfair labor practice in violation of §§ 8(a)(1) and (5) of the National Labor Relations Act (“NLRA” or the “Act”), 29 U.S.C. § 158(a)(1),(5), by refusing to bargain with the Board-certified International Brotherhood of Teamsters, AFL-CIO, Local 830 (the “Union”), and the Board cross-pеtitions for enforcement of its order. The Hotel contends that the bargaining unit certified for representation by the Union was inappropriate. The Board argues that we should not make a decision on the appropriateness of the bargaining unit because the Hotel failed to exhaust its administrative avenues before the Board, and therefore has waived its objections to the unit certification. We recognize that our precedent on this issue has not always pointed in a direct line.
*761 I.
On January 19, 1996, the Union filed a petition with the Board seeking representation of a bargaining unit composed of the Hotel’s ten Engineering Department employees. At a hearing conducted on February 5, 1996 before a hearing officer, the Hotel argued that the Engineering Department employees did not perform tasks sufficiently distinct from the entire Hotel staff and that the only appropriate bargaining unit must also include 170 employees from the Hotel’s Food and Beverage Department, 118 employees from the Rooms Division, and 34 employees who worked in the kitchen. It argued that four years earlier another union, the Hotel Employees and Restaurant Employees International Union Local 274, had sought to represent the entire Hotel staff and the Board had certified such an “all-employee” unit at the same hotel. In the ensuing election the union lost. The Hotel apparently viewed that earlier unit determination as precedential for future situations, and thereby refutative of the smaller unit sought here.
On February 21,1996, the Board’s Regional Director issued a Decision and Direction of Election (“DDE”) which rejected the Hotel’s position. The Regional Director concluded that the Engineering Department employees are separately supervised, perform maintenance and repair duties which can be highly technical and are distinct from other employees’ work, are subject to different wage and work order systems and, as such, share a sufficient community of interest to be deemed an appropriate bargaining unit under Board standards. App. at 224-25.
See Hilton Hotel Corp.,
In the same DDE, the Regional Director informed the Hotel of its right to request review by the Board of his bargaining unit decision pursuant to § 102.67(b) of the Board’s regulations, provided that such request was filed within two weeks from the date of decision, i.e., by March 6,1996. Aрp. at 226. The Hotel failed to request Board review of the Regional Director’s decision by that date, or thereafter.
On March 14,1996, the Union won a secret ballot election conducted by the Board by a vote of 5 to 3. The Hotel did not challenge the eligibility of any election participants nor did it file any objections to the conduct of the election, as it was entitled to do under § 102.69(a) of the Board’s regulations. See 29 C.F.R. § 102.69(a) (1996). On March 25, 1996, thе Board certified the Union as the exclusive collective bargaining representative of that unit’s employees.
In April, the Hotel refused the Union’s request to bargain. On May 10, 1996, in response to an unfair labor practice charge filed by the Union, the Regional Director issued a Complaint and Notice of Hearing alleging that the Hotel’s refusal to bargain violated §§ 8(a)(1) and (5) of the National Labor Relations Act, 29 U.S.C. §§ 158(a)(1), (5). In its answer, the Hotеl argued that the bargaining unit as determined by the Regional Director was improperly certified by the Board and it was thereby excused from its bargaining obligation. The Hotel, however, did not respond to the Board’s Notice to Show Cause why the Motion for Summary Judgment in favor of the Union, filed by the General Counsel, should not be granted.
On July 9, 1996, the Board issued its Decision and Order granting summary judgment to the Union and finding the Hotel’s refusal to bargain to be a violation of §§ 8(a)(1) аnd (5) of the NLRA. The Board noted that the Hotel had not presented any newly discovered evidence or special circumstances that would require a reexamination of the Regional Director’s representation decision and that all the representation objections raised by the Hotel were or could have been litigated in the underlying representation proceeding. In addition, the Board noted that the Hotеl’s failure to seek review of the Regional Director’s determination barred it from raising the same issue in an unfair labor practice proceeding before the Board. Accordingly, the Board ruled that the Hotel had not *762 raised any issue that was properly litigable in the unfair labor practice proceeding and ordered the Hotel to bargain with the Union.
II.
The Hotel concedes that it has refused to bargain. It seeks thereby to obtain judicial review of the Board’s, predicate decision to certify the Engineering Department employees as an appropriate bargaining unit.
See Boire v. Greyhound Corp.,
Prior to 1961, the Board itself determined and certified for elеction, after hearing and investigation, the appropriate unit of employees for collective bargaining.
See American Fed’n of Labor v. NLRB,
The Board developed a huge backlog in large part because of the large number of representation petitions pending before it.
See Amalgamated Clothing Workers,
The regulation sets forth the grounds upon which the Board will grant review, and states it will do so “only where compelling reasons exist therefor.” 29 C.F.R. § 102.67(c). It also provides that the parties may waive their right to request review, see § 102.67(f), and explicitly sets forth the consequences of failing to take advantage of the opportunity to request review of the Board in a timely fashion, as follows:
Failure to request review shall -preclude such parties from relitigating, in any related subsequent unfair labor practice proceeding, any issue which was, or could have been, raised in a representation proceeding. Denial of a request for review shall constitute an affirmance of the regional director’s action which shall also preclude relitigating any such issues in any related subsеquent unfair labor practice proceeding.
29 C.F.R. § 102.67(f) (emphasis added).
Of course, the Board’s prescription of the consequences of a party’s “failure to request review” is determinative only insofar as the Board’s authority reaches. The regulations do not purport to preclude the issues which a reviewing court may consider in cases where a party has failed to seek review from the Board of the Regional Director’s certifiсation decision, nor would the Board have the power to do so. However, it is consistent with general principles of administrative law for the court to require a party who challenges the decision of an administrator to exhaust its administrative remedies as long as an opportunity to do so is provided.
See Fed. Power Comm’n v. Colorado Interstate Gas Co.,
Once representation issues were delegated in the first instance to the Regional Director, the courts appliеd the requirement of exhaustion of remedies to unit certification determinations. In a series of cases, the courts held that if a party has failed to request review from the Regional Director’s unit determination to the Board pursuant to § 102.67(b), the reviewing court will not consider that underlying issue in an unfair labor practice proceeding. As the court stated in
NLRB v. Int’l Health Care, Inc.,
The same result has been reached in numerous other cases by other courts.
See MPC Cash-Way Lumber Co. v. NLRB,
This court adopted that approach in
NLRB v. Delsea Iron Works, Inc.,
The Company refused to bargain with the certified union, leading to an unfair labor practice charge and a subsequent petition to this court for enforcement of the Board’s order to bargain. Although we agreed with the Company that there was no authority for the Regional Director to treat the withdrawn petition for certification that was later reinstated as if it had been filed within the 30 days so as to trigger the expеdited election, see id. at 71, we enforced the Board’s order against the Company, finding that the Company’s failure to seek to appeal the Regional Director’s decision to hold an election and its failure to object to the Regional Director’s subsequent tally of votes constituted a waiver of its right to object to the election procedure. See id.
We explained:
[W]hen the Company received notice that an election would bе handled under the expedited procedure, it could have, pursuant to § 102.80(c) of the Board’s rules and regulations, sought permission to appeal the Regional Director’s direction to hold an election, or to hold an election under the expedited procedure. It did not do so. Instead, it appealed to the General Counsel the dismissal of its § 8(b)(7)(C) charge. The holding of an election, regular or special, in response to the filing of a certification petition, is not a valid ground for objecting to such dismissal. In addition, the Company did not file any objections to the revised tally of votes. '
Id. (footnotes omitted). We concluded that, “Under these circumstances, the Company must be deemed to have relinquished any right it might have had to object to the Regional Director’s directing of a special election and the conducting of the proceeding under the expedited procedure.” Id.
Both parties direct us to our decision the following year in
NLRB v. Capital Bakers, Inc.,
There are references to earlier proceedings in
Capital Bakers
that are not fully explicable on the face of the opinion.
3
While there may be distinguishing circumstances, we believe it important to return the circuit law to the rule enunciated in our еarlier decision in
Delsea Iron Works,
which is consistent with that applied by the courts of the various circuits. Failure to raise an objection to the Board of a Regional Director’s unit determination within the fourteen days required by § 102.67(b) of the Board’s regulations constitutes a waiver of that issue in an unfair labor practice proceeding before this court. To the extent that
Capital Bakers
is contradictory to the waiver ruling enunciated in
Delsea Iron Works,
the earlier holding is the precedential one.
4
See O. Hommel Co. v. Ferro Corp.,
The rationale for this rule is apparent. It stems from the courts’ historic deference to the Board’s administrative procedures. Were we not to enforce strictly the waiver provision contained in § 102.67(f) of the Board’s regulations, we would render the Board’s fourteen day appeal regulatiоn in § 102.67(b) purposeless and would undermine the congressional delegation of authority to promulgate administrative rules and procedures to the Board. The Hotel does not suggest that the Board lacked authority to promulgate the regulation that imposes a waiver when an objection has not been preserved, and we see no reason why that salutary procedure should not be followed by the courts as well.
See Marshall Field & Co. v. NLRB,
III.
We therefore conclude that the Hotel’s objection to the Regional Director’s unit determination was waived by the Hotel’s failure to seek review of the determination by the *766 Board. 5 Accordingly, we will deny the petition for review and enforce the Board’s order.
Notes
. Section 10(e) authorizes the Board to petition for enforcement of an unfair labor practice order:
(e) The Board shall have power to petition any court of appeals of the United States ... wherein such person resides or transacts business, for the enforcement of such order and for appropriate temporaiy relief or restraining order.
29 U.S.C. § 160(e) (1983).
Section 10(f) provides for review at the request of an aggrieved person:
(f) Any person aggrieved by a final order of the Board granting or denying in whole or in part the relief sought may obtain а review of such order in any United States court of appeals in the circuit wherein the unfair labor practice in question was alleged to have been engaged in....
29 U.S.C. § 160(0(1983).
. The regulation states in pertinent part:
The decision of the regional director shall be final: Provided, however, that within 14 days after service thereof any party may file a request for review with the Board in Washington, D.C. The regional director shall schedule and conduct any election directed by the decision notwithstanding that a request for review has been filed with or granted by the Board. The filing of such a request shall not, unless otherwise ordered by the Board, operate as a stay of the election or any action taken or directed by the regional director....
29 C.F.R. § 102.67(b) (1996).
. For example, the opinion states, "Petitioner argues that to have raised the unit representation issue in 1963 in this case would have been futile in the face of adverse determination in two cases within a few months prior to the present case where respondent’s request to review unit determinations had been refused by the Board.”
. Section 9.1 of the Court’s Internal Operating Procedures states that:
It is the tradition of this court that the holding of a panel in a reported opinion is binding on subsequent panels. Thus, no subsequent panel overrules the holding in a publishеd opinion of a previous panel. Court in banc consideration is required to do so.
Third Circuit I.O.P. 9.1.
. Although we decline to pass on the merits of the Hotel's objections, we note that the Hotel’s challenge is limited to the claim that the Regional Director's Engineering Department determination was inconsistent with an all-employee unit determination made four years earlier and that this purported inconsistency thereby raises a strong inference that the Regional Director based his decision on the extent of employee organization in violation of 29 U.S.C. § 159(c). However, it is not necessarily inconsistent to recognize that there may be two appropriate bargaining units, especially where, as here, the Regional Director articulated substantial reasons for its determination which were based on legitimate criteria,
see
app. at 224-25, a process that dispels any appearance of arbitrariness or reliance on impermissible factors.
See NLRB v. Metropolitan Life Ins. Co.,
