The Trump administration plans to complete a court-ordered review of the controversial Keystone XL crude oil pipeline before the end of the year.

According to a filing Tuesday in U.S. District Court for the District of Montana, the State Department said it plans to have a notice announcing its intention to prepare a supplemental environmental impact statement (SEIS) for the pipeline published in the Federal Register this month. A draft version of the SEIS would then be circulated. Publication of a final SEIS would occur in December once the National Environmental Policy Act (NEPA) review is done.

“It should be noted that the dates given are estimates and that certain tasks that must be conducted during the NEPA process can take longer or shorter than expected,” State said in the filing. “Nevertheless, the schedule reflects defendants’ best estimate as to how long the preparation of the SEIS will take.”

In August, U.S. District Court Judge Brian Morris upheld President Trump’s 2017 construction approval but directed the State Department to review changes that reversed the Obama administration’s 2015 rejection. The case is Indigenous Environmental Network et al. v. U.S. Department of State, No. 4:17-cv-00031.

Keystone XL has aroused a decade of protests as an 890,000 b/d addition to export capacity for the northern Alberta oilsands, where thermal production is Canada’s biggest and fastest-growing natural gas user and carbon emitter.

Shortly after taking office, a presidential memorandum was issued to advance construction of Keystone XL and the Dakota Access oil pipeline. Both had been delayed by the Obama administration.