Supreme Court Ruling Limits the Scope of Environmental Review

In an 8-0 vote, the Supreme Court ruled to limit the scope of environmental review required under the 1970s National Environmental Policy Act (NEPA). The Supreme Court’s ruling in the case (Seven County Infrastructure Coalition et al. v. Eagle County, Colorado, et al.) overturned a decision by the DC Circuit and made clear that environmental reviews conducted under NEPA do not need to consider the “upstream” or “downstream” impacts of an infrastructure project. Justice Brett Kavanagh emphasized that the “goal of the law is to inform agency decision making, not paralyze it.” NEPA is an environmental law requiring federal agencies to assess environmental impacts on air quality, water, soil, wildlife, education, economy and other factors before making development decisions.

This case arose from a proposed 88-mile railroad line in Utah that would transport crude oil from northern Utah oilfields to refineries on the Gulf. Various environmental groups and one Colorado county had argued that the broader environmental impacts, the upstream and downstream of the railroad, had not been fully explored and considered. With the Supreme Court’s ruling, it can be expected that predictability for agencies and developers about adequacy in NEPA reviews will improve, speeding up the development process.

For manufacturers of manufactured homes and developers of communities, this decision could reduce regulatory delays and provide greater clarity in the federal review process, helping to streamline project approvals and accelerate housing development timelines.