As the Legislature printed it
DIVISION 4. WORKERS' COMPENSATION AND INSURANCE [3200 - 6002] · PART 4. COMPENSATION PROCEEDINGS [5300 - 6002] · CHAPTER 7. Reconsideration and Judicial Review [5900 - 6002] · ARTICLE 1. Reconsideration [5900 - 5911]
How panels applied this section
Newest released decisions whose legal-standard extraction named this section. Each quotes the passage and links to the official PDF. Unofficial guide — not legal advice.
- ADJ17517591 · 2026-06-23 · Oakland District Office§ 5903
Determinative passage · p.3or denying compensation, or arising out of or incidental thereto, any person aggrieved thereby may petition for reconsideration upon one or more of the following grounds and no other:
Applicant's petitions did not meet these requirements as no final decisions existed for review and were untimely.
Official decision · page 3 → - ADJ12009010 · 2026-06-23 · Long Beach District Office§ 5903
Determinative passage · p.2Decisions of the Appeals Board "must be based on admitted evidence in the record." (Hamilton v. Lockheed Corporation (Hamilton) (2001) 66 Cal.Comp.Cases 473, 476 (Appeals Board en banc).) Furthermore, decisions of the Appeals Board must be supported by substantial evidence. (Lab. Code, § 5903, 5952(d); Lamb v. Workmen's Comp. Appeals Bd. (1974) 11 Cal.3d 274 [39 Cal.Comp.Cases 310]; Garza v. Workmen's Comp. Appeals Bd. (1970) 3 Cal.3d 312 [35 Cal.Comp.Cases 500]; LeVesque v. Workmen's Comp. Appeals Bd. (1970) 1 Cal.3d 627 [35 Cal.Comp.Cases 16].) An adequate and complete record is necessary to understand the basis for the WCJ's decision. (Lab. Code, § 5313; see also Cal. Code Regs., tit. 8, § 10761.)
The Board reminded defendant that summary judgment is not permitted and decisions must be based on evidence, rejecting defendant's request for summary judgment on sanctions.
Official decision · page 2 → - ADJ12027044 · 2026-06-22 · Oakland District Office§ 5903
Determinative passage · p.6Secondly, what Petitioner seeks is for a judicial determination and/or judicial finding by the appeals board and/or workers' compensation judge as to the exact reading and meaning of the terms that the parties entered into in the Compromise and Release. Such a request is not a proper grounds for which a Petition for Reconsideration can be based on. Pursuant to Labor Code Section 5903, the only grounds that parties may seek reconsideration are the following:
The petition did not meet any of the grounds allowed under Labor Code Section 5903.
Official decision · page 6 → - ADJ18236958 · 2026-06-22 · Lodi District Office§ 5903
Determinative passage · p.4A. A petition for reconsideration may properly be taken only from a "final" order, decision, or award. (Lab. Code, § 5900(a), 5902, 5903.) A "final" order has been defined as one that either "determines any substantive right or liability of those involved in the case" (Rymer v. Hagler (1989) 211 Cal.App.3d 1171, 1180; Safeway Stores, Inc. v. Workers' Comp. Appeals Bd. (Pointer) (1980) 104 Cal.App.3d 528, 534-535 [45 Cal.Comp.Cases 410]; Kaiser Foundation Hospitals v. Workers' Comp. Appeals Bd. (Kramer) (1978) 82 Cal.App.3d 39, 45 [43 Cal.Comp.Cases 661]) or determines a "threshold" issue that is fundamental to the claim for benefits. (Maranian v. Workers' Comp. Appeals Bd. (2000) 81 Cal.App.4th 1068, 1070, 1075 [65 Cal.Comp.Cases 650].) Interlocutory procedural or evidentiary decisions, entered in the midst of the workers' compensation proceedings, are not considered "final" orders. (Id. at p. 1075.) Such interlocutory decisions include, but are not limited to, pre-trial orders regarding evidence, discovery, trial setting, venue, or similar issues.
Interlocutory minutes of hearing and Notice of Intent to Impose Sanctions are not final orders subject to reconsideration.
Official decision · page 4 → - ADJ8387927 · 2026-06-19 · San Francisco District Office§ 5903
Determinative passage · p.11 Applicant attached two medical reports to her Petition that are not part of the evidentiary record. To the extent that applicant alleges that the 2026 report regarding her eye condition is newly discovered evidence under Labor Code section 5903, the body part of eyes was not raised at the time of the proceedings in February 9. 2022, and there is no evidence in the record that the condition was labor-disabling before her 2010 injury. With respect to the 2004 report, it is not newly discovered as it existed before the proceedings in 2022, and we do not consider it.
Applicant's new medical reports were not admitted as they were not timely submitted during trial proceedings.
Official decision · page 1 → - ADJ3719477 · 2026-06-15 · Bakersfield District Office§ 5903
Determinative passage · p.6II. A petition for reconsideration may properly be taken only from a "final" order, decision, or award. (Lab. Code, § 5900(a), 5902, 5903.) A "final" order has been defined as one that either "determines any substantive right or liability of those involved in the case" (Rymer v. Hagler (1989) 211 Cal.App.3d 1171, 1180; Safeway Stores, Inc. v. Workers' Comp. Appeals Bd. (Pointer) (1980) 104 Cal.App.3d 528, 534-535 [45 Cal.Comp.Cases 410]; Kaiser Foundation Hospitals v. Workers' Comp. Appeals Bd. (Kramer) (1978) 82 Cal.App.3d 39, 45 [43 Cal.Comp.Cases 661]) or determines a "threshold" issue that is fundamental to the claim for benefits. (Maranian v. Workers' Comp. Appeals Bd. (2000) 81 Cal.App.4th 1068, 1070, 1075 [65 Cal.Comp.Cases 650].) Interlocutory procedural or evidentiary decisions, entered in the midst of the workers' compensation proceedings, are not considered "final" orders. (Maranian, supra, at p. 1075 ["interim orders, which do not decide a threshold issue, such as intermediate procedural or evidentiary decisions, are not `final'..."]; Rymer, supra, at p. 1180 ["[t]he term [`final'] does not include intermediate procedural orders or discovery orders"]; Kramer, supra, at p. 45 ["[t]he term
The WCJ's decision included threshold issues making it a final order subject to reconsideration.
Official decision · page 6 → - ADJ18890787 · 2026-06-15 · San Diego District Office§ 5903
Determinative passage · p.8Here, the failure of applicant to timely appeal the order finding him to be a vexatious litigant within the stated time limits precludes the Appeals Board from considering the issue of the PWCJ's findings declaring him a vexatious litigant.
The Appeals Board applied the time limits to deny the request to vacate the vexatious litigant order due to untimely appeal.
Official decision · page 8 → - ADJ12333976 · 2026-06-08 · Riverside District Office§ 5903
Determinative passage · p.7Turning now to the merits of the Petitions, we remind the parties that there are 25 days allowed within which to file a petition for reconsideration from a "final" decision that has been served by mail upon an address in California. (Lab. Code, § 5900(a), 5903; Cal. Code Regs., tit. 8, § 10605(a)(1).) This time limit is extended to the next business day if the last day for filing falls on a weekend or holiday. (Cal. Code Regs., tit. 8, § 10600.) To be considered timely, however, a petition for reconsideration must be filed with (i.e., received by) the WCAB within the time allowed; proof that the petition was mailed (posted) within that period is insufficient. (Cal. Code Regs., tit. 8, § 10940(a), 10615(b).) This time limit is jurisdictional and, therefore, the Appeals Board has no authority to consider or act upon an untimely petition for reconsideration. (Maranian v. Workers' Comp. Appeals Bd. (2000) 81 Cal.App.4th 1068, 1076 [65 Cal.Comp.Cases 650]; Rymer v. Hagler (1989) 211 Cal.App.3d 1171, 1182; Scott v. Workers' Comp. Appeals Bd. (1981) 122 Cal.App.3d 979, 984 [46 Cal.Comp.Cases 1008]; U.S. Pipe & Foundry Co. v. Industrial Acc. Com. (Hinojoza) (1962) 201 Cal.App.2d 545, 549 [27 Cal.Comp.Cases 73].)
Applied to dismiss defendant's untimely petition for reconsideration of the February 1, 2021 Findings.
Official decision · page 7 →
All 436 decisions naming § 5903 →
The rules written under this section
A statute says what is owed; Title 8 says by when, on what form, and what happens if the deadline passes. These name § 5903as what they implement.
- 8 CCR § 10565Petition Appealing Denial of Return-to-Work Supplement.
- 8 CCR § 10846Skeletal Petitions. [Renumbered]repealed
- 8 CCR § 10852Insufficiency of Evidence. [Repealed]repealed
- 8 CCR § 10856Allegations of Newly Discovered Evidence and Fraud. [Renumbered]repealed
- 8 CCR § 10961Actions by Workers' Compensation Judge After Petition for Reconsideration is Filed.
- 8 CCR § 10972Skeletal Petitions.
- 8 CCR § 10974Allegations of Newly Discovered Evidence and Fraud.
Also on this
Unofficial guide — not legal advice. The statute is the state’s text. The quotes are litigated applications, not a prediction.
About California Labor Code § 5903
What is California Labor Code § 5903?
Labor Code § 5903 sits in ARTICLE 1. Reconsideration [5900 - 5911]. The statute on this page begins: At any time within 20 days after the service of any final order, decision, or award made and filed by the appeals board or a workers’. The official display is on LegInfo; this is a reprint.
Did WCAB panels apply Labor Code § 5903 in this corpus?
This corpus has 436 released decisions whose extracted legal standards named § 5903. Quotes and PDFs are on this page. That is not every case in California that ever cited the section.