The PR-4 permanent and stationary report is the document your primary treating physician writes in a California workers’ compensation claim once your condition has stabilized and further treatment isn’t expected to improve it. It fixes an impairment rating, spells out the medical care you’ll still need, and becomes the medical foundation for your permanent disability benefits and any settlement.
When Your Doctor Writes One
The trigger is a status called “permanent and stationary,” which California regulations define as the point of maximum medical improvement: your condition is well stabilized and unlikely to change substantially in the next year with or without treatment.1Department of Industrial Relations. California Code of Regulations Title 8 Section 9785 – Reporting Duties of the Primary Treating Physician Your doctor makes that call by tracking your clinical progress against earlier benchmarks. Once active curative treatment can’t move the needle further, the PR-4 gets drafted.
The form should be completed whenever the injury has left residual effects or you may need future medical care.2Division of Workers’ Compensation. Primary Treating Physician’s Permanent and Stationary Report PR-4 If your doctor tells you you’ve reached maximum medical improvement, that conversation is essentially the starting gun.
What’s in the Report
The PR-4 is a PDF published by the California Division of Workers’ Compensation, designed for use with the 2005 Permanent Disability Rating Schedule and the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition.2Division of Workers’ Compensation. Primary Treating Physician’s Permanent and Stationary Report PR-4 It walks the physician through your complaints, relevant medical history, objective findings from physical examination, diagnostic test results, expected continuing and future medical treatment, and a functional capacity assessment covering lifting, carrying, standing, walking, sitting, and environmental limits.
One point about the functional capacity section catches people off guard: it exists to determine whether you can return to your usual job, and the form itself says it will not be considered in the permanent impairment rating.3Cornell Law Institute. California Code of Regulations Title 8 Section 9785.4 – Form PR-4 Primary Treating Physician’s Permanent and Stationary Report The impairment percentage comes from a separate analysis under the AMA Guides, not from checking boxes about how much you can lift.
The Impairment Rating
The core medical finding on the PR-4 is your Whole Person Impairment (WPI) percentage. California law requires physicians to calculate it using the AMA Guides, 5th Edition.4California Legislative Information. California Labor Code 4660.1 – Determination of Percentages of Permanent Disability The doctor converts your clinical measurements into a percentage by referencing tables in the Guides. Reduced spinal range of motion, diminished grip strength, a sensory deficit: each maps to a numerical value.
The WPI isn’t subjective. It’s derived from the objective findings documented in the report and matched to the corresponding AMA Guides chapter. A rating that doesn’t clearly show how the doctor moved from clinical data to the final number is vulnerable to challenge. The report has to constitute substantial medical evidence, meaning the conclusions are supported by the facts and reasoning laid out on the page.
The Almaraz-Guzman Exception
Most of the time the physician follows the AMA Guides chapter that corresponds to the injured body part. A 2009 Workers’ Compensation Appeals Board decision established that the standard rating is rebuttable: under the Almaraz-Guzman rule, a physician may use any chapter, table, or method within the AMA Guides that most accurately reflects your impairment, even if it isn’t the default for that body part.5Department of Industrial Relations. Almaraz v. Environmental Recovery Services / Guzman v. Milpitas Unified School District – Opinion and Decision After Reconsideration The doctor cannot go outside the four corners of the Guides, and cannot cherry-pick a method to hit a preferred number. The opinion still has to qualify as substantial evidence with clearly explained reasoning.
Apportionment
Under Labor Code Section 4663, every physician addressing permanent disability must also address apportionment: what percentage of your permanent disability was caused by the work injury, and what percentage by other factors, including preexisting conditions or prior industrial injuries.6California Legislative Information. California Labor Code 4663 A report that skips this analysis is incomplete.
The apportionment finding can move the value of a claim significantly. If the doctor concludes that 30 percent of a spinal impairment predated the industrial injury based on prior imaging, only the remaining 70 percent of the WPI feeds into the permanent disability calculation. The physician has to explain how and why the percentages were assigned, tying the analysis to objective evidence like prior medical records, earlier imaging, or documented work restrictions. A conclusory statement without supporting reasoning is exactly the kind of finding that gets successfully challenged at trial. If the doctor can’t make an apportionment determination, the statute requires a written explanation and a referral to another authorized physician.6California Legislative Information. California Labor Code 4663
How the WPI Becomes Your Disability Rating
The WPI on the PR-4 is a starting point, not the final number. California adjusts it through a multi-step formula. First, the WPI is multiplied by a statutory adjustment factor of 1.4 to account for diminished future earning capacity.4California Legislative Information. California Labor Code 4660.1 – Determination of Percentages of Permanent Disability That figure is then modified by your occupational group at the time of injury, then again by your age on the date of injury. The number that comes out of the age adjustment table is your final permanent disability percentage. The Division’s Disability Evaluation Unit handles these calculations, applying the formula to the physician’s WPI and your demographic information.7Division of Workers’ Compensation. Disability Evaluation Unit
Filing Deadline and When Payments Start
Once the physician determines you’ve reached permanent and stationary status, the regulation requires the PR-4 to be submitted within 20 days of the examination. The report has to address the existence and extent of permanent impairment, any limitations, and any need for continuing or future medical care. The physician satisfies the reporting duty by sending one copy to the claims administrator, or to whoever the claims administrator designates.1Department of Industrial Relations. California Code of Regulations Title 8 Section 9785 – Reporting Duties of the Primary Treating Physician
If you haven’t received your copy, ask for one. The deadlines to dispute the report start running once you receive it.
If you were on temporary disability, the first permanent disability payment must be sent within 14 days after your last temporary disability check. Payments continue until the employer’s reasonable estimate of the total amount due has been paid. The employer can delay advance PD payments if it offers you a job paying at least 85 percent of your pre-injury wages, but any amount ultimately awarded is still calculated from the date temporary disability ended.8California Legislative Information. California Labor Code LAB 4650 For injuries occurring on or after January 1, 2026, the weekly permanent disability payment ranges from a minimum of $160 to a maximum of $290.9Division of Workers’ Compensation. DWC Workers’ Compensation Benefits How many weeks you receive depends on your final permanent disability rating.
Disputing What the PR-4 Says
The PR-4 isn’t the final word. If you disagree with the physician’s WPI, apportionment, or future medical recommendations, a formal dispute process applies, and the steps differ depending on whether you have an attorney.
Without an Attorney
Send a letter to the claims administrator stating your disagreement within 30 days of receiving the report. You can then request a panel of three Qualified Medical Evaluators (QMEs) from the DWC Medical Unit. Within 20 working days, the Medical Unit mails the panel list. You have 10 days from the date the panel is mailed to pick a doctor, schedule an appointment, and notify the insurance company.10Division of Workers’ Compensation. DWC FAQs for Employees
With an Attorney
The deadline to state disagreement is 20 days. Your attorney and the claims administrator can agree on a single doctor, called an Agreed Medical Evaluator (AME), without going through the state panel process. If they can’t agree, either side can request a QME panel, and each party may strike one name from the list of three within 10 days of receiving it.11Department of Industrial Relations. California Code of Regulations Title 8 Section 30 – QME Panel Requests
The QME or AME conducts an independent examination and writes a new medical-legal report that can confirm, modify, or overturn the treating physician’s findings. Missing the dispute deadline doesn’t necessarily waive your rights forever, but it weakens your position and delays the claim.
If Your Employer Doesn’t Offer Suitable Work
If the PR-4 establishes a permanent partial disability and your employer doesn’t offer you suitable work within 60 days of receiving the report, you become eligible for a Supplemental Job Displacement Benefit voucher worth up to $6,000. The employer’s offer has to be for regular, modified, or alternative work lasting at least 12 months. If no qualifying offer comes, the claims administrator must issue the voucher within 20 days after the 60-day window closes.12California Legislative Information. California Labor Code LAB 4658.7
The voucher can pay for education or training at a California public school or approved provider, licensing and certification fees, tools required by a training course, and computer equipment up to $1,000. Up to 10 percent may go toward vocational counseling or a licensed placement agency.13Department of Industrial Relations. Answers to Frequently Asked Questions About Supplemental Job Displacement Benefits
If you get a voucher for an injury on or after January 1, 2013, you can also apply for a separate $5,000 payment through California’s Return-to-Work Supplement Program. The application has to be submitted within one year of the date the voucher was served.14Department of Industrial Relations. Return-to-Work Supplement Program That payment is state-funded and comes on top of the voucher, so it’s worth applying for promptly.