The Supreme Court appears poised to narrow the scope of law requiring research on “environmental impacts” before starting large development projects, a more than 50-year-old requirement under the National Environmental Policy Act (NEPA) that critics say has led to delays and increased costs for large-scale energy projects.

The Supreme Court appeared likely Tuesday to somewhat narrow the scope of environmental reviews required for major infrastructure projects nationwide as it weighed the construction of a Utah rail line that would carry billions of gallons of oil.

The Supreme Court appears likely to weaken one of the nation’s bedrock environmental laws, after justices heard a key case on Tuesday. During oral arguments, several of the court’s conservative

The Supreme Court appeared poised Tuesday to significantly weaken the scope of environmental reviews of major infrastructure projects in a case that could hand President-elect Donald Trump an early win on an issue he often hammered on during his first term.

A proposed Utah railway would quadruple the Uinta Basin’s oil production if built. Colorado and environmentalists have fought the project, arguing its impacts would extend far beyond Utah’s own borders.