Monday, August 31, 2026

California Supreme Court Halts the Appeals Board's Practice of Extending Its Own Reconsideration Deadline

A significant win for California public safety employees and the unions that represent them

By Mastagni Holstedt, APC Partner David E. Mastagni and Senior Associate Jonathan D. Char

The California Supreme Court has delivered a decision that strengthens the finality of workers' compensation awards for the firefighters, peace officers, and other public safety employees who depend on them. In Mayor v. Workers' Compensation Appeals Board, the Court held that the Workers' Compensation Appeals Board may not extend its own statutory deadline of sixty days to act on a petition for reconsideration, and it made clear that the Board's administrative delays cannot excuse that failure. Mayor v. Workers' Comp. Appeals Bd., No. S287261, 2026 WL 2470051 (Cal. Aug. 24, 2026) Public safety unions should welcome this ruling because it protects an injured member's hard-won award from administrative irregularity and from the Board’s own neglect and system systemic failure.

The dispute arose from an all-too-familiar pattern. Joseph Mayor suffered an industrial injury while working for the Ross Valley Sanitation District, and a workers' compensation judge found him permanently and totally disabled. The employer filed a timely petition for reconsideration, yet the petition never reached the Board within the 60-day window because the workers' compensation judge never acted on or transmitted it for reasons the record does not explain, and the Board did not grant reconsideration until roughly 144 days after the petition was filed. The Board justified this lengthy delay by invoking Shipley v. Workers' Compensation Appeals Board, and by asserting that an administrative irregularity had prevented it from receiving the petition on time. The Court rejected that justification and restored the certainty that the governing statute demands.

At the heart of the decision lies Labor Code section 5909. In the version that governed Mayor, a petition for reconsideration was deemed denied unless the Board acted within sixty days of filing. The Legislature has since amended the statute so that the sixty days now runs from the date the trial judge transmits the case to the Board. The Court agreed that this deadline is mandatory and that the Board possesses no authority to toll its own time to act. The Court explained that equitable tolling exists to allow litigants to pursue claims despite certain equitable circumstances, and it does not exist to rescue an agency from its own missed deadline. The Court further reasoned that the statute serves the essential purpose of ensuring that petitions do not languish, and it concluded that permitting the Board to toll the deadline because of its own inefficiency or neglect would defeat that purpose entirely. When the Board acts after the sixty-day period expires, it acts in excess of its jurisdiction, even though it does not lose fundamental jurisdiction over the matter.

The Court reserved particular scrutiny for the Board's habitual reliance on Shipley. It disapproved Shipley to the extent that the decision implied that every party enjoys a due process right to Board review of a petition after the sixty-day deadline has passed. The Court recognized that narrow circumstances may exist in which due process permits the Board to act late, yet it emphasized that the Board had transformed Shipley into a routine workaround for a recurring and systemic failure to receive petitions on time. The Court did not catalog those narrow circumstances, but it made clear where the floor lies. In footnote 7, it explained that "[m]ore is required to establish a due process violation resulting from the failure to timely rule on a petition for reconsideration than the simple filing of a reconsideration petition and the expiration of the statutory deadline to act." That systemic breakdown, the Court held, cannot justify a self-administered remedy that allows the Board to toll its own statutory deadline whenever it falls behind. This portion of the opinion forecloses the very rationale that agencies have used to keep contested awards open indefinitely. That said, Mayor does not eliminate every avenue for prolonging a case. Its holding reaches only untimely Board action, meaning action taken after the statutory deadline has run. If the Board acts within the sixty-day window, it may still grant reconsideration, including a grant for further study, and that timely order keeps the award from becoming final while reconsideration proceedings continue. Because no statutory clock comparable to section 5909 governs how long the Board may then take to issue its decision after reconsideration, a timely grant can leave an award unresolved for a substantial period. What Mayor forecloses is the Board's use of its own delay to manufacture more time after the deadline has already passed.

The practical value of this decision for unions and their members becomes clear when one considers what open ended delay actually costs an injured worker. Mayor won an award of total and permanent disability, yet he received no compensation for years while the reconsideration dispute remained unresolved, and the Court expressly noted that the Board's practice of tolling its own deadline opens the door to open ended extensions. A firefighter who suffers a career ending injury cannot afford to wait while an agency sits on a petition, and this ruling ensures that the statutory clock means what it says. By insisting on finality, the Court protects the reasonable expectation of every public safety employee that a favorable award will become enforceable on a predictable timeline. That predictability cuts both ways. The same sixty-day rule that finalizes a favorable award also runs against an injured worker whose own petition for reconsideration is deemed denied when the Board fails to act in time. In that situation, the worker cannot wait on the Board. Once the petition is denied by operation of law, the member’s only route is a timely petition for writ of review in the Court of Appeal, and that petition must be filed within forty-five days.

The decision provides tools to enforce the deadline rather than wait indefinitely for the Board to act. The Court confirmed that a petition for writ of mandate filed in the Court of Appeal is the proper mechanism for an affected party to compel the Board to honor section 5909. A union member who prevailed before the workers' compensation judge and who watches the Board blow past the statutory window now has a clear judicial path to protect the award. This remedy transforms the sixty-day deadline from an aspiration into an enforceable command, and it places meaningful leverage in the hands of the employees and advocates who invoke it. Which remedy applies depends on what the Board does once the sixty days run. If the Board simply fails to act and the petition is denied by operation of law, the adversely affected party must move quickly, because that finality holds unless the party timely seeks review. In that situation, the remedy is a petition for writ of review in the Court of Appeal, and it must be filed within forty-five days of the deemed denial. If instead the Board acts after the deadline has passed, the remedy is different. There, the party affected by the untimely order enforces the deadline through a petition for writ of mandate, which the Court held is the proper way to compel the Board to honor section 5909. Either way, the sixty-day deadline operates as a firm limit on the Board's power, but it protects only the party who tracks the deadlines and seeks the correct writ in time.

Mayor is a reaffirmation that the workers' compensation system exists to deliver substantial justice expeditiously rather than to accommodate bureaucratic delay. Although the Legislature has since modified the statute so that the sixty-day period begins when the trial judge transmits the case to the Board, the principle that administrative problems must not leave injured workers and their benefits in legal limbo endures. Firefighters and peace officers accept extraordinary risks in the service of their communities, and this decision recognizes that the compensation they earn will not remain hostage to an agency's own missed deadlines.