Supreme Court Reinstates Army Corps’ Nationwide Permit 12 Except As Applied to the Keystone XL Pipeline
On 6 July 2020, the U.S. Supreme Court lifted a nationwide vacatur on the use of the Army Corps of Engineers’ (Corps) Nationwide Permit 12 (NWP 12) for the construction of new oil and gas pipelines. However, the Court declined to lift the vacatur as it applies to the Keystone XL Pipeline from which the original order arose. The decision is a blow to Keystone XL but a relief to other oil and gas pipeline developers who may once again employ NWP 12 to permit pipeline crossings over jurisdictional waters of the United States.