June 28, 2025, marked the first anniversary of the Supreme Court’s landmark ruling in Loper Bright Enterprises v. Raimondo, a transformative decision that ended four decades of Chevron deference. By restoring to courts the duty to interpret the law and provide an independent judgment as to its best meaning, the Supreme Court helped realign the proper balance of power between Congress, the administrative state, and the federal judiciary.
“The Loper Bright decision changed the landscape of administrative law. It will be remembered as a watershed moment in Supreme Court jurisprudence,” said Ryan P. Mulvey, senior policy counsel at Americans for Prosperity Foundation and senior counsel at Cause of Action Institute. “The Court was right to reiterate the Founders’ vision of judges—not bureaucrats—telling us what the law means. The end of Chevron deference is an important step to helping us keep regulatory agencies in check and within the bounds of the authority given to them by Congress.”
Over the past year, Loper Bright has influenced developments across the federal government. Courts at the federal and state levels have cited the precedent in over 1,000 cases. In some of the more impactful decisions, the new Loper Bright standard was used to invalidated the Federal Communications Commission’s net neutrality rules, and to reject the Food and Drug Administration’s novel attempt to regulate laboratory testing services as manufactured “devices.”