ON PETITION FOR WRIT OF CERTIORARI TO THE UNITED STATES COURT OF APPEALS FOR THE DISTRICT OF COLUMBIA CIRCUIT
Respondent Union filed a complaint in 1972 with the National Labor Relations Board alleging that South Prairie Construction Co. (South Prairie) and Peter Kiewit Sons' Co. (Kiewit) had violated §§ 8 (a) (5) and (1) of the National Labor Relations Act, as amended, 61 Stat. 140, 29 U.S.C. §§ 158 (a) (5) and (1), by their continuing refusal to apply to South Prairie's employees the collective-bargaining agreement in effect between the Union and Kiewit. The Union first asserted that since South Prairie and Kiewit are wholly owned subsidiaries of Peter Kiewit Sons', Inc. (PKS), and engage in highway construction in Oklahoma, they constituted a single "employer" within the Act for purposes of applying the Union-Kiewit agreement. That being the case, the Union contended, South Prairie was obligated to recognize the Union as the representative of a bargaining unit drawn to include South Prairie's employees.*fn1 Disagreeing
with the Administrative Law Judge on the first part of the Union's claim, the Board concluded that South Prairie and Kiewit were in fact separate employers, and dismissed the complaint.
On the Union's petition for review, the Court of Appeals for the District of Columbia Circuit canvassed the facts of record. It discussed, inter alia, the manner in which Kiewit, South Prairie, and PKS functioned as entities; PKS' decision to activate South Prairie, its nonunion subsidiary, in a State where historically Kiewit had been the only union highway contractor among the latter's Oklahoma competitors; and the two firms' competitive bidding patterns on Oklahoma highway jobs after South Prairie was activated in 1972 to do business there.*fn2
Stating that it was applying the criteria recognized by this Court in Radio Union v. Broadcast Service, 380 U.S. 255 (1965),*fn3 the Court of Appeals disagreed with the Board and decided that on the facts presented Kiewit and South Prairie were a single "employer." It reasoned that in addition to the "presence of a very substantial qualitative degree of centralized control of labor relations," the facts "evidence a substantial qualitative degree of interrelation of operations and common management
- one that we are satisfied would not be found in the arm's length relationship existing among unintegrated companies." 171 U.S. App. D.C. 102, 108, 109, 518 F.2d 1040, 1046, 1047 (1975). The Board's finding to the contrary was, therefore, in the view of the Court of Appeals "not warranted by the record." Id., at 109, 518 F.2d, at 1047.
Having set aside this portion of the Board's determination, however, the Court of Appeals went on to reach and decide the second question presented by the Union's complaint which had not been passed upon by the Board. The court decided that the employees of Kiewit and South Prairie constituted the appropriate unit under § 9 of the Act*fn4 for purposes of collective bargaining. On the basis of this conclusion, it decided that these firms had committed an unfair labor practice by refusing "to recognize Local 627 as the bargaining representative of South Prairie's employees or to extend the terms of the Union's agreement with Kiewit to South Prairie's employees." Id., at 112, 518 F.2d, at 1050. The case was remanded to the Board for "issuance and enforcement of an appropriate order against...Kiewit and South Prairie." Ibid.
Petitioners South Prairie and the Board in their petitions here contest the action of the Court of Appeals in setting aside the Board's determination on the "employer" question. But their principal contention is that the Court of Appeals invaded the statutory province of the Board when it proceeded to decide the § 9 "unit" question in the first instance, instead of remanding the case to the Board so that it could make the initial determination. While we refrain from disturbing the holding of the Court of Appeals that Kiewit and South Prairie are an "employer," see NLRB v. Pittsburgh S.S. Co.,
U.S. 498 (1951),*fn5 we agree with petitioners' principal contention.
The Court of Appeals was evidently of the view that since the Board dismissed the complaint it had necessarily decided that the employees of Kiewit and South Prairie would not constitute an appropriate bargaining unit under § 9. But while the Board's opinion referred to its cases in this area and included a finding that "the employees of each constitute a separate bargaining unit," 206 N.L.R.B. 562, 563 (1973), its brief discussion was set in the context of what it obviously considered was the dispositive issue, namely, whether the two firms were separate employers. We think a fair reading of its decision ...