Casey Ruud petitions for review of a decision of the Department of Labor (“DOL”) Administrative Review Board (“ARB”) approving the settlement of his whistleblower retaliation complaint against Westinghouse Hanford pursuant to the Clean Air Act, 42 U.S.C. § 7622(b), and the Comprehensive Environmental Response, Compensation and Liability Act (“CERCLA”), 42 U.S.C. § 9610(b). In approving the settlement agreement, the ARB acted on behalf of the Secretary of Labor under the authority of both the Clean Air Act and CERCLA. The Clean Air Act provides for immediate review in the court of appeals, while CERCLA does not. This case thus raises a knotty jurisdictional question: Where an agency issues a decision that has two or more distinct bases of authority providing separate paths of judicial review, does the appellate court have jurisdiction to review the entire proceeding? We hold that it does.
I.
As we decide in this opinion only a jurisdictional question, we provide only the briefest of factual summaries:
While employed at a Westinghouse Hanford nuclear facility, Ruud raised concerns about unsafe designs, quality assurance, and environmental and radiological requirements and conditions. In February 1988, Ruud filed a DOL complaint alleging retaliatory harassment, discrimination, and discharge by Westinghouse Hanford. Ruud initially entered into a settlement of the complaint, but the ARB did not initially approve this settlement. Ruud later took the position that the settlement should be disapproved and the complaint adjudicated instead on the merits. After many years of administrative proceedings — so unusually prolonged for reasons not here relevant — Ruud finally obtained a final, albeit negative, administrative determination of his attempt to undo the settlement. Ruud now petitions this court for review of the ARB’s decision to enter into a settlement of his complaint. 1 Although the parties do not *1088 contest this court’s jurisdiction, we must independently satisfy ourselves that jurisdiction exists. See United States v. Ceja-Prado,333 F.3d 1046 , 1049 (9th Cir.2003).
II.
In entering into the settlement, the ARB relied upon the Secretary’s authority under the Clean Air Act, 42 U.S.C. § 7622(b), as well as her authority under CERCLA, 42 U.S.C. § 9610(b). Under the Clean Air Act, “any person adversely affected or aggrieved” by an order issued under the Act may obtain review in the Court of Appeals for the circuit in which the violation originally occurred. See 42 U.S.C. § 7622(c)(1). CERCLA, however, provides for original jurisdiction in the district court. See 42 U.S.C. §§ 9610(b) and 9613(b). This court has not yet had occasion to consider whether we may exercise jurisdiction where the agency decision under review was rendered pursuant to both the agency’s authority under a statute providing for original jurisdiction in the district court and its authority under a statute providing for immediate review in the court of appeals. 2
Several circuits addressing this question have held that where an agency decision has more than one basis of authority, one of which provides for review in the court of appeals, considerations of judicial economy and consistency justify review of the entire proceeding by the court of appeals.
See Int’l Bhd. of Teamsters v. Peña,
The approach of these courts is consistent with a venerable history of judicially created doctrines acknowledging the need in some cases for the pragmatic application of jurisdictional principles. For example, under the doctrines of pendent and ancillary jurisdiction, the courts have long held that a federal district court may decide claims that would otherwise be outside the scope of the judicial power set forth in Article III, § 2 of the United States Constitution, such as those involving state issues in non-diversity cases.
See, e.g. Osborn v. Bank of United States,
22 U.S. (9 Wheat) 738, 823,
The courts have fashioned practical jurisdictional doctrines in the appellate context as well. Under the collateral order doctrine, an appellate court may review a decision that would not ordinarily be considered “final,” as required by 28 U.S.C. § 1291, if the decision meets certain other criteria.
See Cohen v. Beneficial Industrial Loan Corp.,
The question before us deals not with supplemental district court or pendent ap
*1090
pellate jurisdiction, of course, but with the exercise of jurisdiction over a petition for review of a decision for which
original
jurisdiction is vested in part in the court of appeals and in part in the district court. There is no question that the federal courts have the power to decide this case. There is also no question that the appellate court has jurisdiction over the agency decision insofar as it rests upon a statute providing for original jurisdiction in the courts of appeals. The reasoning that animates the district court supplemental and appellate pendent jurisdiction cases is nonetheless instructive here: In some instances, two issues are so closely interrelated that they should be heard in a single forum.
See, e.g., Gibbs,
Permitting consolidated review in the court of appeals makes particularly good sense in light of the relative positions of appellate courts and district courts. First, an appellate court has “clear appellate jurisdiction even where the district court has exclusive original jurisdiction,” whereas the converse is not true.
Int’l Bhd. of Teamsters,
We therefore adopt the well-reasoned approach of our sister circuits. We hold that the court of appeals should entertain a petition to review an agency decision made pursuant to the agency’s authority under two or more statutes, at least one of which provides for direct review in the courts of appeals, where the petition involves a common factual background and raises a common legal question. Consolidated review of such a petition avoids inconsistency and conflicts between the district and appellate courts while ensuring the timely and efficient resolution of administrative cases. We do not decide, however, whether our jurisdiction is concurrent or exclusive with regard to the aspect of such a petition pertaining to a statute otherwise giving rise to original jurisdiction in the district court.
5
See Int’l Bhd. of Teamsters,
*1091 III.
Accordingly, we conclude that we have jurisdiction to review the merits of this case. For the reasons elaborated in the unpublished memorandum disposition, the petition for review is DENIED.
Notes
. Ruud contends that the ARB's reconsideration of its earlier disapproval of the settlement agreement violates the law of the case doctrine, and that the earlier decision properly took into account evidence of Westinghouse Hanford’s bad faith behavior after the negotiation of the settlement. In an unpublished memorandum disposition filed concurrently with this opinion, we affirm the ARB’s decision.
. This circuit has considered the question whether a district court may exercise jurisdiction where plaintiffs assert independent statutory challenges to agency action taken pursuant to a statute vesting exclusive jurisdiction in the courts of appeals. For example, in
Northwest Resource Information Center, Inc. v. National Marine Fisheries Service,
. Congress codified the Gibbs test at 28 U.S.C. § 1367, changing the terminology slightly. See 28 U.S.C. § 1367 (providing that the district courts shall have "supplemental jurisdiction” over claims that are “so related to claims in the action within [the district court’s] original jurisdiction that they form part of the same case or controversy under Article III of the United States Constitution”). The term "supplemental jurisdiction” now encompasses both pendent and ancillary jurisdiction. We therefore use the term "supplemental jurisdiction” for the remainder of this opinion to describe the power of the district court in this regard.
. Although we have repeatedly cautioned that the doctrine of pendent appellate jurisdiction must be construed "narrowly,”
see Meredith v. Oregon,
. It is possible, for example, that a party may challenge such a "mixed” agency decision *1091 only insofar as it rests upon a statute giving rise to district court jurisdiction. Our holding does not preclude district court jurisdiction in that instance.
