Supreme Court Rules Against EPA in Permitting Case Supported by NAHB

Legal
Published
Contact: Thomas Ward
[email protected]
VP, Legal Advocacy
(202) 266-8230

The U.S. Supreme Court yesterday handed down a decision in San Francisco v. EPA, a case concerning the Environmental Protection Agency’s duties to provide a path to compliance for certain clean water permits. NAHB filed an amicus brief in the case.

The case concerned “water quality standards” related to federal wastewater permits and how EPA must describe a permittee’s duties to meet those standards. In San Francisco’s permits, EPA said that the city had to meet the receiving waters’ — in this case, the Pacific Ocean — “water quality standard” without telling the city how that should be accomplished. San Francisco claimed this condition violated the Clean Water Act (CWA) and the Supreme Court agreed. 

NAHB filed an amicus brief in the case over the concern that if the court agreed with San Francisco’s argument, it could go too far and require EPA to include numeric discharge limits in CWA permits.

A large portion of NAHB members must comply with “construction general permits” (CGPs) due to their earthwork on site. CGPs contain “narrative” permit conditions, often referred to as “best management practices.” NAHB’s brief explained how narrative permit conditions comply with the CWA and cautioned the court not to eradicate them.

In deciding the case, the court focused on the words of the CWA that direct EPA to create limitations in permits to “meet” or “implement” water quality standards. It provided that simply telling permittees to comply with water quality standards does not explain how to “meet” or “implement” them. As a result, the court ruled in favor of San Francisco.

Moreover, the court went out of its way to ensure that the narrative requirements were not at issue in this case and that such requirements are allowed by the CWA. In fact, the court cited NAHB’s brief twice to make these points. 

Subscribe to NAHBNow

Log in or create account to subscribe to notifications of new posts.

Log in to subscribe

Latest from NAHBNow

Economics
Oct 19, 2026
Builder Sentiment Falls on Rising Rates

Builder confidence in the market for newly built single-family homes fell three points to 29 in October, according to the NAHB/Wells Fargo Housing Market Index (HMI) released today. The reading was the lowest since June 2012.

Safety
Oct 16, 2026
The Importance of Safety Guardrails on a Home Building Site

Join NAHB and its official safety sponsor, Builders Mutual, as we celebrate the seventh annual Guardrail Safety Week, Oct. 19-23, and be part of the difference proper guardrail use makes in protecting workers and saving lives.

View all

Latest Economic News

Economics
Oct 16, 2026
Single-Family Permitting Declines Through August

Single-family permitting activity continued to soften through the first eight months of 2026, while multifamily permitting remained stronger compared with the same period last year.

Economics
Oct 16, 2026
Research Highlights the Broad Benefits of Homeownership

A rich, peer-reviewed academic literature finds that homeownership produces benefits that extend well beyond house-price appreciation.

Economics
Oct 15, 2026
Building Material Price Inflation Nears Four Year High

The Producer Price Index for final demand was up 1.3% in September, after rising 0.5% in August. Compared to a year ago, final demand prices were up 6.3%.