Supreme Court Ruling Reaffirms Power of Federal Regulators
The Supreme Court today narrowly decided to uphold, with significant limits, a doctrine that has plagued the regulated community for years. The case, Kisor v. Wilkie, addressed the issue of whether courts should defer to an agency’s interpretation of its own regulations, known also as Auer deference.
NAHB supported the petitioner with amicus briefs on behalf of an industry coalition organized by the association. NAHB has long been concerned with this type of judicial deference because it can create incentives for agencies to avoid formal rulemaking processes, or create vague regulations that they can interpret and re-interpret at a later date. Either tactic prevents the regulated community from participating in the development of the rules that govern their activities.
Auer deference has harmed NAHB’s interest in a number of cases, including a Clean Water Act case where the court relied on Auer to affirm the finding of a violation against property owners who had constructed a ditch to build a residential subdivision.
In a fractured opinion written by Justice Elena Kagan, the Supreme Court declined to overrule its precedent establishing this deference doctrine, and instead identified a series of factors that courts should use when determining whether Auer deference is appropriate. The court stressed that, under this new formulation, the situations where Auer will be applied will be far fewer than is currently the case.
It remains to be seen whether the limitations recommended by the court will address the many problems that NAHB and others in the regulated community have raised.NAHB will vigilantly monitor the application of this re-imagined Auer deference in the lower courts, and engage in opportunities to ensure that the newly-outlined limitations are broadly applied.
Latest from NAHBNow
Jan 21, 2026
NAHB Announces 2026 Best of IBS FinalistsMore than 300 product entries in nine categories were judged by 42 industry and media representatives. See which products were selected as finalists in the 2026 Best of IBS Awards.
Jan 21, 2026
Single-Family Home Size Continues to DeclineThe market could see a leveling off of home size trends in 2026 as mortgage interest rates approach 6% on a sustained basis.
Latest Economic News
Jan 21, 2026
Private Residential Construction Spending Edges Higher in October on Home ImprovementsPrivate residential construction spending was up 1.3% in October, rebounding from a 1.4% decline in September 2025. This modest gain was primarily driven by increased spending on home improvements.
Jan 21, 2026
Single-Family Permits Cooled in the FallIn October, single-family building permits weakened, reflecting continued caution among builders amid affordability constraints and financing challenges. In contrast, multifamily permit activity remained steady and continued to perform relatively well.
Jan 20, 2026
New Single-Family Home Size Trends: Third Quarter 2025New single-family home size has been generally falling since 2015 as a response to declining affordability conditions. An exception occurred when new home size increased in 2021 as interest rates reached historic lows. However, as interest rates increased in 2022 and 2023, and housing affordability worsened, the demand for home size has trended lower.