Opinion for the Court filed by Circuit Judge TATEL.
Seeking to halt several local governmental entities in Kentucky from developing a transit park, appellant environmental organizations sued the Environmental Protection Agency, the Department of Housing and Urban Development, and the Tennessee Valley Authority, alleging that these agencies failed to conduct the environmental and historical assessments required, respectively, by the National Environmental Policy Act (NEPA) and the National Historic Preservation Act (NHPA). Because neither EPA nor HUD engaged in “final agency action” within the meaning of section 704 of the Administrative Procedure Act — a prerequisite for both NEPA and NHPA actions against federal agencies — -we affirm the district court’s dismissal of the complaint against those two agencies. Although TVA did tаke final agency action by making a grant to a transit park tenant, because appellants have produced no evidence of continuing TVA authority over the project, we affirm the district court’s dismissal of the complaint against TVA for mootness.
I.
“Because we review here a decision granting [a] motion to dismiss, we must accept as true all of the factual allеgations contained in the complaint.”
Swierkiewicz v. Sorema,
In 1998, Warren County and the city of Bowling Green, Kentucky, decided to build the Kentucky Trimodal Transpark (“Transpark”),. an $80 million 4,000-6,000 acre industrial park and transportation complex that would include, among other facilities, a new airport, a new rail hub, and extended highways. Located six miles south of Mammоth Cave National Park, the Transpark site rests on a vast karst plain' — a topography characterized by sinkholes, caves, and underground streams, rivers, and groundwater. Adjacent to the site are several areas of historic significance, including the Oakland Freeport Historic District, a site listed in the National Register of Historic Places, and other Reconstruction-era Afriсan-American communities that have applied for historic status.
To develop the Transpark, the county and the city created the Inter-Modal Transportation Authority (ITA), a nonprofit corporation authorized, among other things, to apply for and receive grants from federal agencies. In 2004, ITA began construction of the first phase of the Transpark, which included аn interior road, water and sewer infrastructure, technical training facilities, and a building for Bowling Green Metalforming (“Metal-forming”), an automobile parts manufacturer. During the next few years, the Federal Highway Administration (FHWA) allocated $8.75 million to ITA for highway construction and expansion. FHWA then began the environmental and historical reviews required, respectively, by the National Environmental Policy Act, 42 U.S.C. § 4321 et seq., and the National Historic Preservation Act, 16 U.S.C. § 470 et seq. NEPA requires federal agencies to prepare an environmental impact statement (EIS), which assesses a project’s environmental impact and identifies alternatives, for all proposed “major Federal actions significantly affecting the quality of the human . environment.” 42 U.S.C. *1294 § 4332(C). NHPA requires that before funding or licensing a “[fjederal or. federally assisted undertaking,” federal аgencies must (1) “take into account the effect of’ the undertaking on any district, site, building, structure, or object that is included in or eligible for inclusion in the National Register,” and (2) “afford the Advisory Council on Historic Preservation ... a reasonable opportunity to comment with regard to such undertaking.” 16 U.S.C. § 470f.
Other federal agencies also became involved. The Federal Aviation Administration, which must аpprove the closing of the existing airport (because it provided substantial funding for its construction), studied the feasibility of replacing the old airport with a new one. Congress appropriated $3.75 million for EPA to spend on water and sewer infrastructure, and another $1.75 million for HUD to spend on a training center. And TVA, pursuant to the “Valley Advantage” contract, awarded $500,000 to Metalfоrming for the installation of electrical equipment.
Concerned about the Transpark’s impact on Mammoth Cave’s ecosystem, the karst plain’s underground water sources, and the nearby historic sites, Appellants Karst Environmental Education and Protection and Warren County Citizens for Managed Growth, along with some of their board members (throughout this opinion, we refer to appellants collectively as “Karst”) filed a complaint alleging that EPA, HUD, and TVA all violated both NEPA and NHPA by failing to conduct the required environmental and historical reviews. ITA, Warren County, and Bowling Green moved to intervene as defendants (“local intervenors”), in response to which Karst filed an amended complaint adding allegations against all three and asking the court to “halt[] all demolition and construction of the Transpark until NEPA and NHPA have been fully complied with.” Am. Compl. 27. ,
The district court granted EPA and HUD’s joint motion to dismiss for lack of subject matter jurisdiction under Federal Rule of Civil Procedure 12(b)(1). “[F]or a court to have jurisdiction over claims seeking judicial review,” the district court explained, “it must determine that the action is final.”
Karst Envtl. Educ. & Prot., Inc. v. EPA
II.
Before considering the merits, we must determine whether Karst has Article III standing.
See Steel Co. v. Citizens for a Better Envt.,
Contrary to this argument, however, Karst
does
allege funding by both EPA and HUD — specifically that the Transpark “has already benefited from, and is based on, pervasive federal action in the form of financial assistance from EPA, HUD, and TVA,” Am. Compl. 12, and that “a portion of the funding for ... construction [of the first phase of the Transpark] was federal funding from one or more of the [defendants,”
id.
at 15. Assuming the truth of these claims and that Karst will succeed on the merits, as we must for purposes of standing,
see City of Waukesha v. EPA,
As indicated above, the district court dismissed the case against HUD because it took no “final agency action” and against EPA because it took no “major federal action.”
Karst,
In the NEPA context, the “final agency action” required by the APA must also be a “major federal action” under NEPA.
See Found, on Econ. Trends v. Lyng,
On appeal, Karst does not argue that either EPA or HUD engaged in final agency action. Instead, it maintains that it had no neеd to establish final agency action because “the cumulative substantial involvement of federal agencies in the Transpark federalized the project from its inception.” Appellants’ Br. 25. Even though the federal government is not the ■ Transpark’s primary developer, Karst alleges, the project enjoys sufficient federal involvement to subject EPA, HUD, and TVA to NEPA and NHPA requirements. Based on this federal involvement, Karst argues that:
The funding, permitting and construction of the Transpark project is a “major federal action ...” within the meaning of ... NEPA_But for the federal funding available from and/or provided by EPA, FAA, FHWA, HUD, TVA, and other sources, no part of the Transpark activities which are the subject of this complaint would have been undertaken. The actions taking place at the Trans-park that are the subject of this Complaint are thus final agency action for purposes of the APA.
Am. Compl. 25. Because of this, Karst claims, “[djefendants have violated NEPA by failing to prepare an Environmental Impact Statement for the entire Trans-park.” Id. at 26. Similarly, Karst alleges that the three agencies, by failing to conduct a historical review of the Transpark, viоlated NHPA because “EPA, HUD and TVA jurisdiction over the project requires compliance with Section 106 of NHPA pri- or to agency funding or approval of any aspect of the project.” Id. at 21.
Karst bases its “federalization” claim on two cases,
Maryland Conservation Council v. Gilchrist,
The decision of the Secretary of the Interior to approve the project, and the decision of any other Secretary whose authority may extend to the project, would inevitably be influenced if the County were allowed to construct major segments of the highway before issuance of a final EIS. The completed segments would stand like gun barrels pointing into the heartland of the park.... It is precisely this sort of influence on federal decision-making that NEPA is designed to prevent. Non-federal actors may not be permitted to evade NEPA by completing a project without an EIS and then presenting the responsible federal agency with a fait accompli.
Id. (internal quotation marks and citation omitted).
In Macht, which involved a challenge to Maryland’s construction of a light rail line that would have required a wetlands per *1297 mit from the Army Corps of Engineers, we cited Gilchrist with approval, observing that “[t]he reasoning of the Fourth Circuit in Gilchrist is sound: the state may not begin construction of any part of a project if the effect of such construction would be to limit significantly the options of the federal officials who have discretion over substаntial portions of the project.” Id. at 19. That said, we limited the federalization theory to situations of “substantial” federal involvement. Id. Applying that standard to the light rail project, we found insufficient evidence of federal involvement because federal agencies had discretion over “only a negligible portion of the entire project,” as compared to Gilchrist, “where several agencies had discretion over a substantial part of the highway project.” Id. (emphasis added, internal quotation marks omitted).
Relying on Gilchrist and Macht, Karst argues it has no need to demonstrate “final agency action” pursuant to the APA. According to Karst, “it is the construction activity by the non-federal ‘partner’ with the federal government in their ‘joint venture’ or such action by the non-federal entity that will face the ‘inevitable exercise of federal approval power’ that triggers APA jurisdiction over federal agencies.” Appellants’ Reply Br. 3-4.
Karst’s argument suffers from two defects which, in combination, are fatal to its case. First, given that
Macht
found insufficient federal involvement to trigger NEPA, its statement that “[t]he reasoning of the Fourth Circuit in
Gilchrist
is sound” is dictum. Thus, unlike the Fourth Circuit, we have no binding precedent adopting the federalization theory. Second, and even more important, at the time
Gilchrist
and
Macht
were decided, in 1986 and 1990, respectively, we had not yet held in
Public Citizen I
and
II
that NEPA claims must be brought pursuant to the APA and must therefore allege “final agency action.”
See Public Citizen II,
Thus, although the federalization theory may have had merit when we decided
Macht,
it lacks vitality today given our decisions in
Public Citizen I
and
II,
as well as our subsequent decisions reiterating the requirement that NEPA claims must be brought under the APA and allege final agency action.
See, e.g., Fund for Animals v. U.S. Bureau of Land Mgmt.,
The remaining defendant, TVA, did undertake final agency action by making the $500,000 grant to Metalforming. But the district court, noting that TVA had awarded the grant in 2004, months before Karst filed its complaint, concluded that “[a] claim that the defendants violated ... NEPA is moot when the action complained of has been completed and no effective relief is available.”
Karst,
Karst insists that effective relief remains available because TVA can impose measures on Metalforming to mitigate any environmental harm caused by the electrical equipment paid for by the agency’s grant.
See Vieux Came Prop. Owners, Residents, &
Assocs.,
Inc. v. Brown,
If TVA actually has authority — whether by stаtute, regulation, contract, or otherwise — -to impose mitigation measures upon Metalforming, Karst’s claim might well remain justiciable.
See Vieux Carre,
III.
For the reasons given above, we affirm the district court’s dismissal of the complaint as to all defendants.
So ordered.
