How to Fill Out and Submit the California DWC-1 Workers’ Compensation Form

The California DWC-1 form is the one-page claim document that officially notifies your employer you were hurt on the job and triggers their duty to authorize medical treatment and forward your claim to their insurance carrier. You complete the top (employee) half, sign and date it, hand or mail it to your employer, and keep a dated copy for yourself. California law gives you 30 days from the date of injury to report the injury in writing, and your employer must give you the DWC-1 within one working day of learning about it.1California Legislative Information. California Code LAB 5401

Deadlines That Control Your Claim

Two clocks start the moment you are hurt. The first is the 30-day written notice requirement under Labor Code 5400. Missing that window can jeopardize your benefits, so tell your supervisor right away, even before the form is in your hands.2California Legislative Information. California Code LAB 5400 For repetitive-strain injuries or illnesses that develop gradually, the 30 days starts from the date you first knew, or reasonably should have known, that your condition was work-related.

The second clock is the one-year statute of limitations under Labor Code 5405. You have one year from the date of injury, the last date you received disability payments, or the last date you received medical treatment (whichever is latest) to file an Application for Adjudication with the Workers’ Compensation Appeals Board.3California Legislative Information. California Code LAB 5405 Filing the DWC-1 pauses that statute, which is one more reason to submit it quickly.

Where to Get the Form

Your employer is required to hand you a DWC-1 (in person or by first-class mail) within one working day of learning about the injury, as long as it caused you to miss time beyond your shift or needed more than basic first aid.4California Legislative Information. California Code Labor Code 5401 If they drag their feet, download it yourself from the California Division of Workers’ Compensation.5Division of Workers’ Compensation. DWC Forms The form is bilingual (English and Spanish) and comes with a notice of potential eligibility for benefits attached.

How to Fill Out the Employee Section

The top half of the DWC-1 contains nine numbered fields you are responsible for. Fill in each one:

  • Line 1 asks for your full legal name and today’s date.
  • Line 2 asks for your home address.
  • Line 3 asks for city, state, and ZIP code.
  • Line 4 asks for the date the injury occurred and the time of day (mark a.m. or p.m.).
  • Line 5 asks for the address or description of where the injury happened. Be specific. Name the building, floor, loading dock, or intersection, not just the company name.
  • Line 6 asks for a description of the injury and every body part affected. List each one individually (for example, “lower back, left knee, and right shoulder”) rather than something vague like “hurt at work.”
  • Line 7 asks for your Social Security number. Providing it is voluntary, but it helps the claims administrator locate your records.
  • Line 8 asks whether you agree to receive notices about your claim by email only, with your email address if so.
  • Line 9 is your signature.

Line 6 is where most people shortchange themselves. If you hurt your back and also felt pain radiating into your leg, list both. Anything you leave off becomes harder to claim later, because the insurance company will argue those body parts were not part of the original injury. When in doubt, include it.

How to Submit the Form

Once you have completed and signed the employee section, deliver the form to your employer. You have two practical choices.

Hand-delivering it to your supervisor or HR department is the fastest route. Ask for a dated copy or a written receipt on the spot. That receipt becomes your proof of the filing date if any dispute comes up later. If the workplace relationship is tense or you are worried about the form disappearing, send it by certified mail with return receipt requested. The green card you get back from USPS establishes exactly when the employer received it. Either way, photocopy the completed form before you hand anything over.

The moment your employer receives the form, the legal clock starts on their side.

What Your Employer Does After You File

Your employer fills out the bottom “Employer” section, which includes the company name, address, and the name and contact information of their workers’ compensation insurance carrier, and records the date they received the form from you.6University of California, Los Angeles. Workers’ Compensation Claim Form DWC 1 and Notice of Potential Eligibility California law then requires the employer to give you a completed, dated copy of the form and forward the original to their insurance claims administrator.7Division of Workers’ Compensation. How to File a Claim If a copy never comes back to you, follow up and ask for one. That copy is your proof the claim is in the pipeline.

Within one working day of receiving your completed form, the employer must authorize medical treatment for the reported injury.8California Legislative Information. California Code LAB 5402 You do not have to wait for a formal decision before seeing a doctor. Under Labor Code 5402, the claims administrator must authorize up to $10,000 in medical treatment while the claim is under investigation, and that authorization applies even if the claim is ultimately denied. Once the claim is accepted, the $10,000 ceiling goes away.

The Claims Administrator’s Deadlines

Once the claims administrator receives your DWC-1, two regulatory deadlines control the pace of your claim.

  • Within 14 days, if the administrator cannot determine liability, they must send you a written delay notice explaining why, what additional information they need, and when they expect to decide.9Cornell Law Institute. Cal Code Regs Tit 8 9812 – Benefit Payment and Notice
  • Within 90 days, the administrator must deny the claim or the injury is legally presumed to be work-related and compensable. That presumption can only be rebutted with evidence discovered after the 90-day window closes.10California Legislative Information. California Code Labor Code 5402

If you have not heard anything within two weeks of filing, call the insurance company listed on your copy of the DWC-1 and ask for a status update. Silence often means your paperwork is sitting in a queue, not that it has been accepted.

If Your Claim Is Denied

A denial letter does not end your case. To challenge it, file an Application for Adjudication of Claim with the Workers’ Compensation Appeals Board. That document formally opens your case before an administrative law judge who can review the evidence and overrule the denial. You can file in the county where you live, where the injury happened, or where your attorney is located.

Keep the one-year statute of limitations in mind: your Application for Adjudication generally must be filed within one year from the date of injury or the last date you received benefits, whichever is later.3California Legislative Information. California Code LAB 5405 Before a hearing is scheduled, you or your attorney must also file a Declaration of Readiness. If you are handling the case without a lawyer, the DWC’s Information and Assistance officers at local district offices can walk you through the process at no cost.11Division of Workers’ Compensation. Answers to Frequently Asked Questions About Workers’ Compensation for Employees

Filing a Claim Is Legally Protected

Filing a DWC-1 is a protected act. Under Labor Code 132a, your employer cannot fire you, cut your hours, reassign you to undesirable shifts, or otherwise punish you for filing a workers’ compensation claim. An employer who retaliates commits a misdemeanor and can be ordered to pay increased compensation of up to $10,000, reimburse your lost wages and benefits, cover costs and expenses up to $250, and reinstate you to your former position.12California Legislative Information. California Code Labor Code 132a The same statute bars the insurance company from pressuring the employer to fire you or threatening to raise premiums because you filed. If you believe you were retaliated against, you have one year from the discriminatory act or termination to petition the Workers’ Compensation Appeals Board.

The Fraud Warning on the Form

The DWC-1 includes a fraud warning printed directly on it. Under Insurance Code 1871.4, knowingly making false statements on a workers’ compensation claim is punishable by up to one year in county jail or two, three, or five years in state prison. Fines can reach $150,000 or double the value of the fraud, whichever is greater, and the court can impose both the prison term and the fine.13California Legislative Information. California Code Insurance Code INS 1871.4 The statute targets fabricated or inflated injuries. If you were genuinely hurt at work, the form is there for exactly that purpose, and describing your injury accurately and completely is both what the law requires and what best protects your claim.