King & SpaldingยทSECURITIES / CAPITAL MARKETS

PCAOB wins D.D.C. ruling upholding its enforcement proceedings

A federal district court in Washington, D.C. denied summary judgment for plaintiffs challenging the constitutionality of PCAOB enforcement proceedings, clearing a major hurdle for the audit regulator's disciplinary process.

On September 30, 2026, the U.S. District Court for the District of Columbia decided Doe v. PCAOB, No. 1:24-cv-780, granting the Public Company Accounting Oversight Board's cross-motion for summary judgment and denying the plaintiffs' cross-motion; the reported excerpt does not supply the reasoning, the parties' identity, or the specific constitutional provisions at issue, so the scope of the holding should be confirmed against the opinion itself.

The development matters because the PCAOB sits at the center of the securities-enforcement ecosystem for public companies and their audit committees. Its authority to litigate disciplinary proceedings against registered accounting firms has been contested structurally since the Supreme Court's 2021 decision in Free Enterprise Fund v. PCAOB, which invalidated the former "unitary" removal provision and prompted follow-on challenges. A merits win of this kind reduces uncertainty about whether PCAOB disciplinary actions can proceed on a stable constitutional footing.

For audit-committee counsel and issuers relying on PCAOB-registered firms, the concrete follow-ups are any appeal, the interaction between PCAOB proceedings and parallel private securities litigation, and further challenges to the Board's structure. Practitioner commentary (here from King & Spalding) suggests implications for the future shape of PCAOB enforcement; operational effects on inspection and disciplinary timelines are not established by this ruling alone.

pcaobsecurities-enforcementconstitutional-challengeaccounting-auditsummary-judgmentaudit-oversight
Read the original firm alert โ†’ Wednesday, October 7, 2026

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