Justice Clarence Thomas on Monday sharply criticized his own majority opinion in a 15-year-old telecommunications case and an underlying decision that says courts must give deference to agencies interpreting their own regulations, urging his colleagues to reconsider both rulings.

Thomas wrote alone in an 11-page dissent that said the Supreme Court should have agreed to review the tax case Baldwin v. United States. The Baldwin petition, arriving from the U.S. Court of Appeals for the Ninth Circuit, had asked the justices outright to overrule Thomas's 2005 decision in National Cable & Telecommunications Assn. v. Brand X Internet Services, a regulatory case that said a federal agency had correctly interpreted the Communications Act of 1934.

Thomas used the Baldwin case to raise and advance his concerns about his prior Brand X decision, and the underlying doctrine called "Chevron deference," a bedrock part of administrative law that says courts generally adopt agencies's views, if reasonable, of their rules. That deference has drawn criticism from conservatives members of the court, but no justice has moved to overturn the 1984 ruling.

"Even if the court is not willing to question Chevron itself, at the very least, we should consider taking a step away from the abyss by revisiting Brand X," Thomas wrote in Monday's dissent. Quoting a statement from the late Justice Robert Jackson in a 1950 ruling, Thomas said: "It is never too late to 'surrende[r] former views to a better considered position.'"

Thomas regularly writes solo dissents, urging his colleagues to revisit, or even strike down, earlier rulings. But it's rare for any justice to cast doubt on a prior ruling the justice had earlier written.

Critical to the Brand X decision was the majority's view, led by Thomas, that it "follows from Chevron" that a court must abandon its previous interpretation of a statute in favor of the agency's interpretation unless the prior court decision found the statute was unambiguous.

"Regrettably, Brand X has taken this court to the precipice of administrative absolutism," Thomas said Monday. "Brand X may well follow from Chevron, but in so doing, it poignantly lays bare the flaws of our entire executive-deference jurisprudence."

Expressing what he called "skepticism" of the Brand X ruling, Thomas said his decision now "appears to be inconsistent with the Constitution, the Administrative Procedure Act (APA), and traditional tools of statutory interpretation."

The Supreme Court's 1984 decision Chevron U.S.A. Inc. v. Natural Resources Defense Council held that courts generally must accept an agency's interpretation of an ambiguous statute if the interpretation is reasonable. That decision is in "serious tension" with the Constitution, the Administrative Procedure Act and "over 100 years of judicial decisions," Thomas wrote Monday.

Thomas has criticized the Chevron doctrine in prior opinions, as have other justices, including Justice Neil Gorsuch. He repeated many of those criticisms in Monday's dissent. Thomas argued that the Chevron decision gives federal agencies unconstitutional power and undermines the ability of the judiciary to perform its checking function on the other branches.

Appellate veteran Elbert Lin of Hunton Andrews Kurth noted that Thomas' criticism of Chevron on Monday went further than it had before. Thomas had said in the past that there could be "some unique historical justification for deferring to federal agencies." In Monday's statement, Thomas said, "it now appears to me that there is no such special justification."

Thomas' combination of his criticism of Chevron with his disavowal of his Brand X opinion was striking.

"Chevron requires judges to surrender their independent judgment to the will of the executive; Brand X forces them to do so despite a controlling precedent," Thomas wrote. He continued: "Chevron transfers power to agencies; Brand X gives agencies the power to effectively overrule judicial precedents. Chevron withdraws a crucial check on the executive from the separation of powers; Brand X gives the Executive the ability to neutralize a previously exercised check by the judiciary."

The Baldwin petition was a challenge to a ruling by U.S. Court of Appeals for the Ninth Circuit. The appellate court gave deference to a new interpretation by the Internal Revenue Service of the deadline for requesting tax refunds. Aditya Dynar of the New Civil Liberties Alliance was counsel to Howard and Karen Baldwin.

"Their decision to not take the Baldwins' case is going to negatively affect judicial independence for years to come," Dynar said in a statement. "And it is going to dilute the continued legitimacy and finality of court decisions. We are currently reviewing next steps in terms of bringing this issue back up in a different case."

Noel Francisco U.S. Solicitor General Noel Francisco. Photo: Diego M. Radzinschi / NLJ

The Justice Department had urged the Supreme Court to turn down the petition. "As long as Chevron remains the law, there is no sound reason to reconsider Brand X, and petitioners do not ask the court to revisit Chevron," U.S. Solicitor General Noel Francisco told the justices.

"As this court recognized in Brand X itself, the rule the court adopted there 'follows from Chevron,'" Francisco wrote. "Petitioners have not asked this court to overrule Chevron, and this case is not a suitable vehicle for considering that step."

Francisco also told the court: "It would make little sense for a court of appeals to decline to give effect to an agency regulation that is otherwise entitled to deference, simply because a prior panel of the same court had interpreted an ambiguous statute differently before the regulation was promulgated."