“Eman really knows his stuff and we were very pleased with our end result.”
Myretta & Thomas Knorr
✦ Certified Specialist in Workers’ Compensation Law — Certified by the State Bar of California, Board of Legal Specialization ✦
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
It runs on three short clocks at the Los Angeles WCAB: twenty days to file the Petition for Reconsideration, then forty-five days to seek writ review.
An appeal-stage worker has 20 days for the Petition for Reconsideration (25 by mail) and 45 days for the Writ of Review. In Paramount, the underlying ruling comes from the Los Angeles WCAB and the Petition is e-filed through EAMS the day the order arrives. Certified Specialist Eman Yazdchi (California Board of Legal Specialization, State Bar of California) drafts the Petition and preserves the writ.
A Paramount workers' comp appeal moves on three statutory stages — the Petition for Reconsideration to the WCAB itself under California Labor Code §5900 and California Labor Code §5903, the Writ of Review to the California Court of Appeal under California Labor Code §5950, and, in rare cases, discretionary review by the California Supreme Court. The first stage — the California Labor Code §5903 Petition — is the only one with a deadline measured in single digits of days: 25 days for a mailed Findings & Award, 20 days for an electronically-served Findings & Award, both from the date of service.
Paramount's caseload — driven by warehouse / logistics, food processing, drayage trucking, and industrial manufacturing — generates appeals from adverse California Labor Code §4660 rating decisions, California Labor Code §4663 apportionment rulings, California Labor Code §3208.1 cumulative-trauma denials, California Labor Code §3600 AOE/COE rulings, and California Labor Code §4610.6 IMR denials. On a Paramount warehouse forklift injury fact pattern, the most common appeal grounds are an erroneous PD rating, an excessive apportionment fraction, and a denial of California Labor Code §4553 serious-and-willful penalty.
Yazdchi Law's office sits at 1125 W Avenue M-14 in Palmdale — roughly 70 miles north of Paramount via the 14, the 5, and the 710 — with no satellite in Paramount. Eman Yazdchi is a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California, and files Paramount appeals at the Los Angeles district WCAB at 320 West 4th Street, Los Angeles, with Writ of Review work running to the California Court of Appeal. Call (661) 273-1780.
Three layered tracks: Independent Medical Review for treatment denials, Petition for Reconsideration for adverse rulings, then a Writ of Review.
The California workers' comp appeal framework is statutory and unforgiving on deadlines. Three stages, each with its own statutes, deadlines, and standards of review, control every Paramount appeal.
Under California Labor Code §5900, the WCAB has authority over its own Findings & Award; under California Labor Code §5903, an aggrieved party files a Petition for Reconsideration within 25 days of a mailed Findings & Award or 20 days of an electronically-served Findings & Award. The petition runs to the seven-commissioner WCAB en banc, which reviews on the existing record without taking new evidence. The grounds in California Labor Code §5903 are limited — that the WCAB acted without or in excess of its powers, that the order was procured by fraud, that the evidence does not justify the findings of fact, that the petitioner has newly-discovered evidence, or that the findings of fact do not support the order. On a Paramount warehouse forklift injury appeal, the "evidence does not justify" ground is the most commonly pled.
Under California Labor Code §5950, after the WCAB denies (or grants and then resolves) Reconsideration, the next step is a Writ of Review to the California Court of Appeal, filed within 45 days of the WCAB's decision. The Court of Appeal reviews on the record made at the WCAB — no new evidence. Review is discretionary, and grant rates run roughly 5–10% of petitions filed, per California Court of Appeal published-opinion data. A granted writ in a Paramount warehouse forklift injury case opens the door to a published or unpublished opinion that, if favorable, can reset rating doctrine across the entire workers' comp system.
A California Labor Code §5903 Petition has to pick a statutory ground — most commonly "the evidence does not justify the findings of fact" — and then build the record citation against that ground. On a Paramount warehouse forklift injury appeal of an excessive California Labor Code §4663 apportionment fraction, the Petition cites the QME deposition transcript, the AME report, and the trial record to show the apportionment percentage was not supported by substantial medical evidence. The Petition must be verified. Service rules differ for mailed vs. electronically-served Findings & Awards — 25 days mailed, 20 days electronic, both from the date of service.
Under California Labor Code §5814, when a payment of compensation has been unreasonably delayed or refused, the WCAB increases the underlying benefit by 25%. On a Paramount appeal where the original WCJ erred in denying California Labor Code §4653 TD or California Labor Code §4658 indemnity, the California Labor Code §5814 25% penalty applies to every benefit that was wrongfully withheld. The penalty is in addition to interest under California Labor Code §4650 and any California Labor Code §4553 serious-and-willful 50% award that may apply.
Under California Labor Code §4610.6, a Paramount worker can petition the Los Angeles WCAB to review an IMR decision on five narrow grounds — fraud, conflict of interest, plainly erroneous fact, lack of authority, or material omission. Grant rates are very low — IMR is, by statute, the final word on medical necessity in most cases. But on a fact pattern where the IMR reviewer plainly missed an MRI finding or relied on a non-MTUS guideline, the California Labor Code §4610.6 petition is the only path to reverse the UR denial.
Related on yazdchilaw.com: California workers' comp appeal pillar guide · Pasadena workers' comp appeal · Dana Point workers' comp appeal · Paramount denied workers' comp claim · California Labor Code §5903 (Petition for Reconsideration deadline).
Three deadlines drive every California workers' comp appeal: 20 days (electronic) or 25 days (mail service) for a §5900 Petition for Reconsideration; 30 days for a §4610.5 IMR appeal of a Utilization Review treatment denial; 25 days from the reconsideration denial for a §5950 Writ of Review to the California Court of Appeal.
Under California Labor Code §5903 a Petition for Reconsideration must rest on one of six specific grounds — (a) the appeals board acted without or in excess of its powers; (b) the order, decision, or award was procured by fraud; (c) the evidence does not justify the findings of fact; (d) the petitioner discovered new evidence that could not, with reasonable diligence, have been produced at hearing; (e) the findings of fact do not support the order, decision, or award; (f) any other matter required by law. A verified Petition for Reconsideration must be signed under penalty of perjury and served on every party and lien claimant on the same day it is filed with the appeals board.
The Petition is filed at the Long Beach WCAB district where the underlying Workers' Compensation Judge (WCJ) ruling was issued, then transmitted to the seven-member Workers' Compensation Appeals Board in San Francisco for review. After filing, the assigned trial-WCJ prepares a Report and Recommendation on Reconsideration; the appeals board then issues a written decision either granting the petition (which usually orders a rehearing on a defined issue, sometimes en banc) or denying it. If the petition is denied, the only remaining remedy is a §5950 Writ of Review to the California Court of Appeal — a discretionary writ the court may grant or summarily deny within 60 days.
Injured at work? Call (661) 273-1780
Tap to call →Los Angeles WCAB e-filing through EAMS, the California Court of Appeal for writ review, and Yazdchi Law's no-cost Paramount case review by phone.
Paramount appeals are filed at the Los Angeles district office of the Workers' Compensation Appeals Board at 320 West 4th Street downtown, roughly twelve miles north of Paramount, and run from there to the seven-commissioner WCAB en banc in San Francisco on California Labor Code §5903 Reconsideration, and to the California Court of Appeal on California Labor Code §5950 Writ of Review. Yazdchi Law files Paramount California Labor Code §5903 Petitions, California Labor Code §5950 Writs, and California Labor Code §4610.6 IMR-review petitions at the Los Angeles WCAB on warehouse forklift injury files and the full Gateway Cities caseload.
A successful Paramount California Labor Code §5903 Petition that reverses an erroneous California Labor Code §4660 PD rating or an excessive California Labor Code §4663 apportionment commonly increases the indemnity recovery by tens of thousands to over $100,000 in the $40,000–$200,000 settlement range, plus restored California Labor Code §4600 medical care. The California Labor Code §5814 25% penalty layers on top when the original denial was unreasonable. A successful California Labor Code §5950 writ in a published opinion can reset rating doctrine system-wide. In past Yazdchi Law cases, the firm's case-result range has reached $1,500,000 on cervical-spine cases and up to $5,000,000 on catastrophic spinal-cord injury — as historical magnitudes, not promised outcomes. Past results do not predict future cases. Each case turns on its specific medical evidence, apportionment under California Labor Code §4663, the rating schedule under California Labor Code §4660, and credibility findings at the WCAB. Your case will differ.
For a serious work injury in Paramount, call 911. the closest acute-care EDs are PIH Health Hospital - Downey on Lakewood Boulevard and Long Beach Memorial Medical Center. Every ED record, urgent-care record, and treating physician record from day one is part of the appeal record under California Labor Code §5903 — the Los Angeles WCAB cannot take new evidence on Reconsideration, so the trial record must already contain every medical document the appeal will rely on. Cal/OSHA reporting requires employer notification within 8 hours of any death, hospitalization, amputation, or loss of an eye.
Last reviewed by Eman Yazdchi, Esq., June 2026.
Get your case evaluated in 60 seconds.
Get Your Free Case EvaluationThree fields. No obligation.
Read more testimonials →“Eman really knows his stuff and we were very pleased with our end result.”