If you run a California business with more than ten employees, the cal osha form 300 is the centerpiece of your annual injury and illness recordkeeping obligation. Cal/OSHA enforces its own version of the federal OSHA recordkeeping standard under Title 8 of the California Code of Regulations, sections 14300 through 14300.48, and the state actively audits compliance. Understanding which incidents you must record, how to classify them, and when to post the summary keeps you out of citation territory and protects your workers.
The cal osha form 300 is technically called the Log of Work-Related Injuries and Illnesses, and it is one of three connected documents California employers must maintain. Alongside it sit Form 301, the detailed incident report, and Form 300A, the annual summary that gets posted in your workplace from February through April every year. Together these three forms create a continuous paper trail of every recordable workplace injury, illness, hospitalization, and fatality across a calendar year.
California's rules look similar to federal OSHA's 1904 regulations, but there are important differences. Cal/OSHA requires recordkeeping for some industries that federal OSHA exempts, applies stricter electronic submission deadlines in certain years, and aggressively investigates serious-injury reporting failures. The state's Division of Occupational Safety and Health has also adopted enhanced reporting rules for workplace violence in healthcare settings under SB 553 and AB 1601, which expand the universe of incidents employers must log.
Whether you are a construction superintendent in Sacramento, an HR manager at a Los Angeles warehouse, a restaurant owner in San Diego, or a safety coordinator at a Bay Area manufacturing plant, the recordkeeping framework is the same. You decide if the incident is work-related, you decide if it meets the recording criteria, you log it on Form 300, you document the details on Form 301, and at year-end you summarize totals on Form 300A. Each of those steps has nuances that trip up even experienced safety professionals.
This guide walks through every requirement for the 2026 reporting cycle: who must keep the forms, what counts as recordable, deadlines for entering incidents, how to handle privacy concern cases, the rules for posting Form 300A from February 1 through April 30, electronic submission to Cal/OSHA's portal, retention periods, and the most common mistakes that lead to citations. We will also cover how Form 300 interacts with serious-injury reporting (eight-hour rule) and workers' compensation claims.
If you are studying for an OSHA exam or building a compliance program from scratch, working through practice questions reinforces the recordkeeping vocabulary that appears on every general industry test. You can sharpen those fundamentals with our free OSHA practice questions while you read. The same recordable-versus-reportable distinctions show up on both Cal/OSHA inspections and OSHA 10 and 30 certification exams, so the time invested pays off twice.
By the end of this article you will know exactly when an incident becomes recordable, how to fill out each column of the cal osha form 300 correctly, what to post in your breakroom every spring, and how to avoid the citation patterns Cal/OSHA inspectors look for first. Let's start with the numbers that define California recordkeeping in 2026.
The running log where you enter every recordable case during the year. Includes employee name, job title, date of injury, location, description, and outcome columns (death, days away, restricted duty, transfer, other recordable).
A detailed individual report completed within seven calendar days of learning about each recordable case. Captures how the injury happened, what the employee was doing, the object or substance involved, and treating physician information.
Year-end totals from Form 300 broken down by injury type and outcome. Signed by a company executive and posted in a visible workplace location from February 1 through April 30 of the following year.
A separate confidential list maintained when a case involves a privacy concern (sexual assault, mental illness, HIV, needlestick from another person, intimate body part injury). The employee name is omitted from Form 300 and tracked here instead.
Used for the immediate eight-hour reporting requirement to Cal/OSHA when a serious injury, illness, hospitalization (any duration as of 2020), or fatality occurs. Separate from the annual 300 log but often triggered by the same incident.
Cal/OSHA recordkeeping kicks in once an establishment has more than ten employees at any point during the previous calendar year. The count includes all workers on payroll regardless of full-time, part-time, seasonal, or temporary status. Family members on the payroll count too. Temporary workers supplied by a staffing agency are counted by the employer that supervises their day-to-day work, which is usually the host company, not the agency.
Establishment is defined per location, not per legal entity. A company with two warehouses, each employing seven people, has fewer than eleven workers at each establishment and may qualify for the partial exemption at both. The same company with one warehouse of fourteen workers must keep records there but not at a separate two-person sales office. This per-site analysis matters because California enforces it on a building-by-building basis during inspections.
Even if you qualify for the small-employer partial exemption, you are never exempt from two duties: responding to the BLS or Cal/OSHA survey if you receive one, and immediately reporting any serious injury, illness, in-patient hospitalization, amputation, loss of an eye, or fatality within eight hours under Title 8 section 342. Those reporting obligations apply to every California employer regardless of size.
Cal/OSHA also imposes recordkeeping on some industries that federal OSHA exempts under its low-hazard NAICS list. For example, certain retail, finance, and service-sector employers that would be exempt federally may still owe California records because the state has not adopted the full federal exemption schedule. When in doubt, check the current Title 8 section 14300.2 partially exempt industries appendix or call your district Cal/OSHA office before assuming you are off the hook.
The employee threshold also applies to volunteers in certain nonprofit contexts and to family farms with non-family employees. Religious organizations are not automatically exempt — only the strictly religious activities are. A church-run daycare, for example, is treated as a regular employer for recordkeeping. If you are unsure how your structure is classified, Cal/OSHA Consultation Services offers free guidance to employers with fewer than 250 workers without triggering enforcement.
Independent contractors are not employees and do not count toward the threshold or appear on Form 300 — but misclassification is a frequent audit issue. California's ABC test under AB 5 is strict, and Cal/OSHA inspectors will examine whether workers labeled as 1099 contractors actually meet the criteria. If your contractor injuries should have been logged because the workers were really employees, citations stack quickly. When you start mapping your OSHA compliance program, classification audits should run alongside your recordkeeping setup.
One more wrinkle: multi-employer worksites in construction. The general contractor is responsible for site-wide safety conditions but each subcontractor maintains its own Form 300 for its own employees. A subcontractor with twelve workers on a job site keeps records even if the project's prime contractor would not require recordkeeping at the location. Get this straight before the first incident, not after.
A recordable case is any work-related injury or illness that meets at least one of the general recording criteria in Title 8 section 14300.7: death, days away from work, restricted work or job transfer, medical treatment beyond first aid, loss of consciousness, or a significant injury or illness diagnosed by a physician or licensed health professional. Recordable cases go on Form 300 and Form 301 within seven calendar days of when you, the employer, learn about them.
Common recordable examples include a strained back requiring prescription muscle relaxants, a laceration needing sutures, a fractured finger, hearing loss confirmed by audiometric testing meeting the shift criteria, and any work-related case of COVID-19 confirmed by a positive test where the exposure occurred at work. First-aid-only cases like band-aid application, ice packs, and over-the-counter medication doses generally are not recordable.
A reportable incident must be communicated to Cal/OSHA immediately — within eight hours of the employer learning of the event. Reportable events under Title 8 section 342 include any serious injury or illness, in-patient hospitalization (regardless of duration since 2020 amendments), amputation, loss of an eye, or any work-related death. Reporting is done by phone or through Cal/OSHA's online portal to the nearest district office, even outside business hours and on weekends.
The eight-hour clock starts when a supervisor, manager, or employer representative becomes aware of the qualifying event, not when the injury physically happened. If an employee is hospitalized at 11 p.m. Friday and the safety director learns about it Monday at 7 a.m., the report is due by 3 p.m. that Monday. Failing to report on time is one of the most heavily penalized violations Cal/OSHA writes, often carrying $5,000 to $25,000 per incident.
Many serious cases are both reportable and recordable. A construction worker who falls from a scaffold and is hospitalized overnight triggers the eight-hour Cal/OSHA report and also lands on Form 300 as a days-away case with a Form 301 incident report. The two duties run in parallel and do not substitute for each other. Calling Cal/OSHA does not satisfy your recordkeeping duty, and entering the case on Form 300 does not satisfy your immediate reporting duty.
The distinction matters because employers commonly confuse them and miss one obligation. Train your supervisors to ask two questions for every incident: "Is this reportable to Cal/OSHA right now?" and "Will this become recordable when the treatment plan is set?" Building that two-track thinking into your incident response form prevents the late-report citation that often shows up after a serious injury investigation.
Cal/OSHA inspectors routinely ask for the past five years of Form 300 logs during a wall-to-wall inspection. Title 8 section 14300.33 requires you to keep Forms 300, 300A, 301, and any privacy case list for five years following the end of the calendar year they cover. You must also update Form 300 if you later learn that a case changed classification — for example, if a worker initially returned to full duty but two months later required surgery and days away.
Filling out the cal osha form 300 correctly requires attention to a handful of columns that consistently cause confusion. Column A is the case number, a sequential identifier that ties the Form 300 entry to its matching Form 301. Column B is the employee name (or "privacy case" if applicable). Column C is the job title at the time of the injury, not the employee's current title if it changed after the incident.
Column D is the date of injury or onset of illness. For acute injuries the date is obvious — the day the cut, fall, or strain occurred. For illnesses with gradual onset like carpal tunnel syndrome or noise-induced hearing loss, use the date a healthcare provider first diagnosed the condition or the date you, the employer, first received notice. Column E is the location of the event, described specifically enough to be useful ("loading dock bay 3" beats "warehouse").
Column F is the injury or illness description, including the body part affected. Cal/OSHA expects enough detail to understand what happened: "sprained right ankle stepping off forklift" is sufficient, while "hurt foot" is not. Columns G through J are the outcome checkboxes: death, days away from work, job transfer or restriction, and other recordable cases. Mark only the most serious outcome that applies — if an injury caused both restricted duty and lost time, check days away.
Columns K and L track the number of days away from work and days of job transfer or restriction. The 180-day cap applies: once a case reaches 180 days in either column, stop counting even if the employee remains out or restricted. Combine the two only when transitioning — if a worker was away 30 days then on light duty 60 days, log 30 in K and 60 in L. This count drives workers' comp lost-time analytics and is often cross-checked.
Columns M1 through M6 classify the injury type: injury, skin disorder, respiratory condition, poisoning, hearing loss, or all other illnesses. Only one box per case. Hearing loss has specific recording criteria under section 14300.10 — a 10 dB standard threshold shift averaged at 2000, 3000, and 4000 Hz in either ear, combined with a total hearing level of 25 dB or more above audiometric zero, triggers the recordable hearing-loss column.
Once you understand the columns, the workflow becomes routine. Train two designated recordkeepers per site so that vacations and turnover do not break the chain. Cross-check Form 300 against workers' compensation first-report-of-injury forms quarterly; discrepancies in either direction signal a documentation problem. If you also handle OSHA general industry training, your OSHA 10 certification path includes the same recordkeeping vocabulary, so reinforcing it through training reduces field errors.
The annual Form 300A summary requires totals from Form 300 across all outcome and injury type columns, plus average number of employees and total hours worked during the year. Hours include all regular and overtime hours paid to employees on payroll. Do not include independent contractors. The averaged employee count divides total annual hours worked across all employees by the average weekly hours per employee — usually 2,000 hours per full-time worker per year as a benchmark.
Electronic submission rules add another layer to Cal/OSHA recordkeeping. Establishments with 250 or more employees in any industry not partially exempt, plus establishments with 20 or more employees in designated high-hazard industries (construction, manufacturing, warehousing, healthcare, agriculture, and many others listed in Appendix H), must electronically submit Form 300A data to OSHA's Injury Tracking Application (ITA) by March 2 each year. The federal ITA portal serves California through a coordination agreement.
The 2023 rule expansion now also requires establishments with 100 or more employees in designated industries to submit Form 300 and Form 301 case-level data, not just the summary. That means individual incident details — without personally identifying information — flow to the federal database annually. California has aligned with this requirement, and Cal/OSHA cross-references the ITA submissions against state inspection findings.
The most common Cal/OSHA citations involving Form 300 fall into predictable patterns. First is the missing log entirely — no Form 300 maintained at all, often discovered during a programmed inspection or post-incident investigation. Second is the under-reported log, where serious cases are absent or misclassified as non-recordable. Third is the late or missing Form 300A posting, especially at remote satellite locations the corporate office forgot about.
Fourth is the unsigned Form 300A or a signature from someone without sufficient authority. The signer must be a company executive: the owner, a corporate officer, the highest-ranking employee on-site, or the immediate supervisor of that highest-ranking person. A staff HR generalist signing without delegated authority does not satisfy the requirement. Fifth is missing case-level Form 301s — the log exists but the underlying incident reports were never completed.
Sixth, and increasingly common, is the failure to electronically submit by the March 2 deadline. Cal/OSHA monitors the ITA portal and issues citations when designated industries miss submission. Seventh is improper handling of privacy cases, particularly putting an employee name on Form 300 when the case qualifies as a privacy concern. Eighth is failing to update Form 300 when a case changes status — for example, when an employee initially returned to work later requires surgery.
Penalty exposure is real. The 2026 Cal/OSHA penalty schedule allows up to $15,873 per other-than-serious violation and up to $158,727 for willful or repeat violations. Recordkeeping failures are usually classified as other-than-serious unless they obscured a fatality or amputation, in which case willful classification becomes possible. Reviewing the official OSHA logo and recognizing legitimate Cal/OSHA correspondence helps you distinguish real notices from scam mailings that target small employers.
Best practice is to run a calendar with three anchor dates: January 15 to finalize Form 300 for the prior year and complete Form 300A; February 1 to post Form 300A; and March 2 to electronically submit if your establishment is covered. Build the dates into your compliance calendar with two-week reminder leads. Then schedule a mid-year audit in July to spot any classification or counting errors before they compound at year-end.
Beyond the mechanics of the forms, several practical strategies separate well-run California recordkeeping programs from the ones that get cited. First, build a standardized incident intake form that captures everything Form 301 will eventually need: date and time of injury, location, witnesses, what the employee was doing, the object or substance involved, and the treating provider information. Capture it once at intake instead of chasing details days later.
Second, train every supervisor — not just the safety team — on the difference between first aid and medical treatment. Cal/OSHA uses a specific list in section 14300.7(b)(5)(ii): first aid includes things like applying bandages, using non-prescription medications at non-prescription strength, drilling a fingernail to relieve pressure, and removing splinters with tweezers. Anything beyond that list is medical treatment, and the case becomes recordable. Posting this list at the first-aid station prevents misclassifications at the source.
Third, integrate Form 300 with your workers' compensation administrator. Every comp claim with lost time should automatically generate a Form 300 entry in your system; conversely, every Form 300 case with days away should have a matching comp claim. Quarterly reconciliation between the two data sources catches mismatches before they become inspection findings. Your TPA or comp carrier can usually produce a quarterly export specifically for this purpose at no cost.
Fourth, use the privacy case list correctly. The qualifying conditions are narrowly defined: injuries to intimate body parts or the reproductive system, sexual assault, mental illness, HIV or hepatitis or tuberculosis infection, needlestick or sharps injuries involving another person's blood or potentially infectious material, and any case where the employee requests anonymity for a qualifying condition. Mark these as "privacy case" on Form 300 and maintain employee names on a separate confidential list with restricted access.
Fifth, when employees ask for their records — they have the right under section 14300.35 — provide a copy by the end of the next business day. Former employees have the same right. Authorized employee representatives, including union stewards, can also request copies of Form 300 (with privacy redactions) and Form 300A by the end of the next business day. Refusing or delaying access is its own violation category and frequently appears in retaliation complaints.
Sixth, plan for inspections by keeping a recordkeeping binder accessible to whomever an inspector first reaches. The binder should contain the past five years of Form 300, all matching Form 301s, posted Form 300As with proof of posting dates, the privacy case list (in a sealed envelope marked confidential), and any documentation of training your recordkeepers have completed. Producing the binder within minutes signals a mature compliance program and often shortens the inspection.
Finally, sign up for Cal/OSHA's free consultation service before you ever face an enforcement inspection. Consultation visits are confidential, do not result in citations, and give you a written gap analysis you can use to fix problems on your own timeline. For employers under 250 workers, this is the single highest-ROI compliance step available — and it covers Form 300 recordkeeping among many other Title 8 subjects.