
    SIERRA CLUB; West Virginia Rivers Coalition ; Indian Creek Watershed Association ; Appalachian Voices; Chesapeake Climate Action Network Petitioners v. UNITED STATES ARMY CORPS OF ENGINEERS; Mark T. Esper, in his official capacity as Secretary of the U.S. Army ; Todd T. Semonite, in his official capacity as U.S. Army Chief of Engineers and commanding General of the U.S. Army Corps of Engineers; Philip M. Secrist, in his official capacity as District Commander of the U.S. Army Corps of Engineers, Huntington District; Michael E. Hatten, in his official capacity as Chief, Regulatory Branch, U.S. Army Corps of Engineers, Huntington District Respondents
    Mountain Valley Pipeline, LLC Intervenor
    No. 18-1173 (L)
    United States Court of Appeals, Fourth Circuit.
    FILED: October 2, 2018
    Evan Dimond Johns, APPALACHIAN MOUNTAIN ADVOCATES, INC, Charlottesville, VA, Joseph Mark Lovett, Derek Owen Teaney, Senior Attorney, APPALACHIAN MOUNTAIN ADVOCATES, Lewisburg, WV, for Petitioners.
    Eric Allen Grant, Deputy Assistant Attorney General, John David Gunter, II, Emily Anne Polachek, Jeffrey H. Wood, U. S. DEPARTMENT OF JUSTICE, Washington, DC, for Respondents.
    Douglas J. Crouse, Robert G. McLusky, JACKSON KELLY, PLLC, Charleston, WV, Deidre Glasser Duncan, Brian R. Levey, HUNTON ANDREWS KURTH, LLP, Washington, DC, Kevin Spencer Elliker, George Peter Sibley, III, HUNTON ANDREWS KURTH, LLP, Richmond, VA, for Intervenor.
    ORDER
   PER CURIAM:

Petitioners ask this Court to set aside Respondent U.S. Army Corps of Engineers' (the "Corps") December 22, 2017, verification and July 3, 2018, reinstated verification that construction of the Mountain Valley Pipeline (the "Pipeline") can proceed under the terms and conditions of Clean Water Act Nationwide Permit 12 ("NWP 12"), rather than an individual permit. Among other arguments, Petitioners assert that, in issuing its verification, the Corps improperly imposed one condition-requiring use of a "dry cut" method for constructing four river crossings-"in lieu of" a special condition imposed by the State of West Virginia, J.A. 232-that "[i]ndividual stream crossings must be completed in a continuous, progressive manner within 72 hours," J.A. 43-as part of its certification of NWP 12. Construction of each of the four river crossings using the "dry cut" method is expected to take four-to-six weeks to complete.

Exercising jurisdiction pursuant to 15 U.S.C. § 717r(d)(1), we conclude, for reasons to be more fully explained in a forthcoming opinion, that the Corps lacked authority to substitute the "dry cut" requirement "in lieu of" West Virginia's 72-hour temporal restriction. Accordingly, we VACATE, in its entirety, the Corps' verification of the Pipeline's compliance with NWP 12. See 5 U.S.C. § 706(2) ; 33 C.F.R. § 330.6(d) (explaining that if any part of a project requires an individual permit, then "the NWP does not apply and all portions of the project must be evaluated as part of the individual permit process."). We reserve judgment on the parties' remaining arguments until our forthcoming opinion.  