12.3 Cal/OSHA Recordkeeping (Form 300, 300A, 301) & 8-Hour Serious Injury/Fatality Reporting

Key Takeaways

  • Employers with more than ten (10) employees in non-exempt industries must record all work-related injuries and illnesses meeting recordability criteria on Cal/OSHA Form 300 within seven (7) calendar days of receiving notification.
  • Cal/OSHA Form 300A (Annual Summary) must be certified by a highest-ranking company executive and posted conspicuously in every establishment from February 1 through April 30 following the calendar year covered, even if zero recordable injuries occurred.
  • Under California Labor Code § 6409.1(b) and 8 CCR § 342, every California employer must report any serious injury, illness, or death to DOSH immediately by telephone or online, and no later than eight (8) hours after learning of the event.
  • Assembly Bill 1805 modernized the statutory definition of 'serious injury or illness,' eliminating the 24-hour hospitalization threshold: now defined as inpatient hospitalization for other than medical observation or diagnostic testing, amputation, loss of an eye, or serious degree of permanent disfigurement.
  • Failure to report a serious injury, illness, or death to Cal/OSHA within the mandatory 8-hour window carries a statutory mandatory minimum civil penalty of $5,000 under Labor Code § 6409.1(b).
Last updated: September 2026

12.3 Cal/OSHA Recordkeeping (Form 300, 300A, 301) & 8-Hour Serious Injury/Fatality Reporting

Executive Summary: Workplace injury and illness tracking in California involves two entirely separate legal frameworks that HR professionals must master: routine annual occupational log recordkeeping under Title 8 California Code of Regulations (8 CCR) § 14300 et seq., and the urgent 8-hour immediate reporting mandate for serious industrial injuries, illnesses, and fatalities under California Labor Code § 6409.1(b) and 8 CCR § 342. While employers with more than 10 employees must log recordable events on Cal/OSHA Forms 300, 300A, and 301 within seven calendar days, every California employer regardless of size must notify DOSH within eight hours whenever a worker suffers an inpatient hospitalization, amputation, loss of an eye, or death. Following the passage of Assembly Bill 1805, the former 24-hour hospitalization threshold was abolished; any inpatient admission for medical treatment triggers the 8-hour clock, and untimely reporting carries a non-waivable mandatory minimum civil penalty of $5,000.


Cal/OSHA Log Recordkeeping Framework (8 CCR § 14300 et seq.)

California's injury and illness log recordkeeping regulations are codified in Title 8 CCR §§ 14300–14300.48. While structurally harmonized with federal OSHA Form 300 requirements, Cal/OSHA enforces independent statutory citations and administrative oversight.

Employer Coverage and Exemptions

  1. Small Employer Exemption (8 CCR § 14300.1): Employers that had ten (10) or fewer employees at all times during the preceding calendar year are exempt from routinely maintaining Cal/OSHA injury logs, unless specifically instructed to do so in writing by Cal/OSHA or the federal Bureau of Labor Statistics (BLS).
  2. Low-Hazard Industry Exemption (8 CCR § 14300.2): Establishments classified in specific low-hazard retail, finance, insurance, real estate, and professional service NAICS codes are exempt from routine log maintenance.

[!IMPORTANT] Exemptions Do NOT Waive IIPP or 8-Hour Reporting! An employer that qualifies for the small employer or low-hazard recordkeeping exemption is still 100% subject to the written IIPP mandate (8 CCR § 3203) and the immediate 8-hour serious injury reporting mandate (Labor Code § 6409.1(b)). Never confuse log-keeping exemptions with workplace safety exemptions.


The Three Core Cal/OSHA Recordkeeping Forms

Covered California employers must maintain three specialized records for each physical establishment:

┌─────────────────────────────────────────────────────────────────────────────┐
│                      THE CAL/OSHA RECORDKEEPING SUITE                       │
├───────────────────────────┬───────────────────────────┬─────────────────────┤
│           FORM            │           TITLE           │  OPERATIONAL RULES  │
├───────────────────────────┼───────────────────────────┼─────────────────────┤
│ Cal/OSHA Form 300         │ Log of Work-Related       │ Enter recordable    │
│                           │ Injuries and Illnesses    │ cases within 7      │
│                           │                           │ CALENDAR DAYS       │
├───────────────────────────┼───────────────────────────┼─────────────────────┤
│ Cal/OSHA Form 300A        │ Summary of Work-Related   │ Executive certified;│
│                           │ Injuries and Illnesses    │ POSTED FEB 1 -      │
│                           │                           │ APRIL 30 annually   │
├───────────────────────────┼───────────────────────────┼─────────────────────┤
│ Cal/OSHA Form 301         │ Injury and Illness        │ Incident details;   │
│ (or WC Form 5020)         │ Incident Report           │ completed within 7  │
│                           │                           │ CALENDAR DAYS       │
└───────────────────────────┴───────────────────────────┴─────────────────────┘

1. Cal/OSHA Form 300: Log of Work-Related Injuries and Illnesses

The Form 300 is an ongoing, establishment-specific log capturing detailed data on each recordable occupational injury or illness.

  • The 7-Calendar-Day Rule: The employer must record each recordable case on Form 300 within seven (7) calendar days of receiving information that the injury or illness occurred.
  • Work-Relatedness Standard (8 CCR § 14300.5): An event is work-related if an event or exposure in the work environment either caused or contributed to the resulting condition, or significantly aggravated a pre-existing medical condition.

What Makes a Case Recordable? (8 CCR § 14300.7)

A work-related injury or illness must be recorded on Form 300 if it results in any of the following:

  1. Death;
  2. Days away from work (lost time);
  3. Restricted work activity or transfer to another job;
  4. Medical treatment beyond first aid;
  5. Loss of consciousness; or
  6. A significant injury or illness diagnosed by a physician or other licensed health care professional (PLHCP) (e.g., fractured bones, punctured eardrums, cancer, chronic irreversible diseases).

Day Counting Mechanics

  • When tracking "Days Away from Work" or "Restricted Work Activity," count calendar days, NOT scheduled work shifts. Weekend days, scheduled holidays, and vacation days must be counted if the treating physician indicates the employee was medically restricted or unable to work on those days.
  • Do not count the day of the injury. Day counting begins on the day after the incident occurred.
  • The 180-Day Cap: If an employee's lost-time or restricted work extends over months, the employer may cap the count at 180 calendar days on Form 300.

Medical Treatment vs. First Aid

Only medical treatment beyond first aid triggers Form 300 recording. Title 8 CCR § 14300.7(b)(5) provides an exhaustive regulatory list of what constitutes First Aid. If a treatment does not appear on this list, it is legally classified as Medical Treatment:

First Aid (Non-Recordable on Form 300)Medical Treatment (Recordable on Form 300)
Non-prescription medications at over-the-counter (OTC) strengthPrescription medications (including prescription NSAIDs like 800mg Ibuprofen, antibiotics, or a single dose of muscle relaxers)
Cleaning, flushing, or soaking surface woundsSurgical sutures, staples, or medical skin adhesives (e.g., Dermabond)
Using wound coverings (bandages, gauze pads, butterfly bandages, Steri-Strips)Using wound closure devices that require surgical technique
Hot or cold therapy (ice packs, heating pads)Physical therapy or chiropractic treatment administered by licensed clinicians
Non-rigid support (elastic bandages, wraps, non-rigid back belts)Rigid immobilization devices with rigid stays (splints, casts, hard braces)
Drilling fingernails or toenails to relieve pressure, draining blistersInvasive procedures, aspiration of fluids, or surgical debridement
Removing foreign bodies from eye using irrigation or cotton swabRemoving foreign bodies from eye using instruments or burr tools
Using finger guards, eye patchesOxygen administration for acute distress
Administering tetanus immunizationsAdministering prescription medical vaccines or prophylactic drug therapies

Privacy Concern Cases (8 CCR § 14300.29)

To protect employee medical privacy, the employer must not enter the employee's name on Form 300 if the injury falls into a statutory privacy category: (1) intimate body part injury; (2) sexual assault; (3) mental illness; (4) HIV, hepatitis, or tuberculosis infection; (5) needle-stick or sharp injury contaminated with blood/OPIM; or (6) employee illness where privacy is requested. The employer writes "Privacy Case" in the name column and maintains a separate, confidential master index linking the case number to the employee's identity.

2. Cal/OSHA Form 300A: Annual Summary of Injuries and Illnesses

At the end of each calendar year, the employer must calculate the total number of recordable cases, days away, restricted days, and injury categories on Form 300A.

Executive Certification Mandate

Under 8 CCR § 14300.32, the Form 300A cannot be signed by a safety coordinator or HR generalist. It must be reviewed and certified by a qualifying company executive, defined strictly as:

  1. An owner of the company (sole proprietorship or partnership);
  2. An officer of the corporation (e.g., President, Vice President, Treasurer, Secretary);
  3. The highest-ranking company official working at the establishment (e.g., Plant Manager, General Manager); or
  4. The immediate supervisor of the highest-ranking official at the establishment.

The Mandatory Posting Window: February 1 through April 30

The certified Form 300A must be posted conspicuously in each establishment where notices to employees are customarily posted from February 1 through April 30 of the year following the calendar year covered.

Critical Rule: Even if the employer had zero (0) recordable injuries or illnesses during the entire year, the employer must still complete Form 300A, enter zeros across all summary fields, secure executive certification, and post the form from February 1 through April 30!

3. Cal/OSHA Form 301: Injury and Illness Incident Report

Form 301 captures detailed medical and narrative data for each individual recordable injury. It must be completed within seven (7) calendar days of receiving notice. In California, employers may substitute the standard California Workers' Compensation Form 5020 (Employer's Report of Occupational Injury or Illness) in place of Form 301, provided it contains identical information.

4. Record Retention & Electronic Reporting Mandates

  • Five-Year Retention (8 CCR § 14300.33): Employers must retain Cal/OSHA Forms 300, 300A, and 301 (or Form 5020) for at least five (5) years following the end of the calendar year that these records cover.
  • Annual Electronic Submission (8 CCR § 14300.41): Certain California establishments (those with 250+ employees, or 20–249 employees in designated high-hazard industries) must electronically submit Form 300A data to federal OSHA's Injury Tracking Application (ITA) annually by March 2. Under expanded rules, establishments with 100+ employees in high-hazard industries must also electronically submit detailed Form 300 and 301 data.

The Critical 8-Hour Serious Injury, Illness or Fatality Reporting Mandate

While annual recordkeeping is routine and administrative, California enforces an urgent, high-stakes reporting mandate that catches unprepared employers off guard: the 8-Hour Immediate Notification Rule.

Statutory Basis & Reporting Mandate

Under California Labor Code § 6409.1(b) and Title 8 CCR § 342:

"Every employer shall report immediately to the Division of Occupational Safety and Health any serious injury or illness, or death, of an employee occurring in a place of employment or in connection with any employment."

  • "Immediately" Defined: Under 8 CCR § 342(a), "immediately" means as soon as practically possible, but not longer than eight (8) hours after the employer knows or with diligent inquiry would have known of the death or serious injury/illness.
  • Exigent Circumstances Exception: If the employer can demonstrate that exigent circumstances (such as a total communications collapse caused by a major natural disaster) made notification within 8 hours impossible, the report must be made no later than 24 hours after the incident. OSHAB interprets this exception with extreme strictness.
  • Reporting Mechanism: The report must be made by telephone or through Cal/OSHA's online reporting portal directly to the nearest DOSH district office where the incident occurred.

Assembly Bill 1805 Overhaul: The Definition of "Serious Injury or Illness"

Historically, California defined a serious injury as one requiring inpatient hospitalization for a period in excess of 24 hours for other than medical observation. Employers frequently delayed reporting while waiting to see if a worker's hospital stay crossed the 24-hour mark.

Effective January 1, 2020, Assembly Bill 1805 (AB 1805) abolished the 24-hour rule, aligning California law with heightened employee protection. Under current Labor Code § 6302(h), a "Serious Injury or Illness" is defined as:

┌─────────────────────────────────────────────────────────────────────────────┐
│            AB 1805 STATUTORY DEFINITION OF SERIOUS INJURY/ILLNESS           │
├─────────────────────────────────────────────────────────────────────────────┤
│ 1. INPATIENT HOSPITALIZATION for any duration for other than medical        │
│    observation or diagnostic testing;                                       │
│ 2. AMPUTATION (loss of any portion of a bone or digit);                     │
│ 3. LOSS OF AN EYE; or                                                       │
│ 4. SERIOUS DEGREE OF PERMANENT DISFIGUREMENT.                               │
└─────────────────────────────────────────────────────────────────────────────┘

Key Practical Implications of AB 1805:

  • Hospital Admissions of Any Duration: If an employee is formally admitted as an inpatient for surgical repair, wound debridement, or clinical treatment, the 8-hour reporting clock begins immediately upon admission, even if the worker is discharged after only four hours! Emergency room visits and outpatient clinic visits for diagnostic imaging (X-rays, CT scans) or observation do not trigger 8-hour reporting unless the worker is formally admitted as an inpatient.
  • Amputations of Digits/Bone: Any amputation involving bone loss—even a fingertip amputation—must be reported within 8 hours. Loss of fingernails or skin avulsions without bone loss do not constitute amputations.
  • Statutory Exclusions: Serious injuries or fatalities occurring on a public street or highway are exempt from reporting unless the incident occurred in a designated construction work zone. Injuries resulting from a Penal Code violation (e.g., an unprovoked criminal assault by a non-employee) are also excluded unless related to employment duties.

The Mandatory Minimum $5,000 Civil Penalty

California Labor Code § 6409.1(b) establishes a mandatory minimum civil penalty of $5,000 for any employer who fails to report a serious injury, illness, or death to DOSH within the mandatory 8-hour window.

[!CAUTION] Non-Waivable Statutory Penalty: In binding appellate decisions (including Steve P. Rados, Inc.), the Occupational Safety and Health Appeals Board (OSHAB) has established that Administrative Law Judges and the Appeals Board have zero statutory discretion to reduce the $5,000 penalty below the legislative floor. Even if an employer has operated in California for fifty years with a flawless safety record, cooperated fully with investigators, and reported the incident at hour 9 instead of hour 8, the $5,000 penalty is mandatory and cannot be mitigated!


Common Exam Traps

[!WARNING] Exam Trap 1: The Outdated 24-Hour Hospitalization Myth A classic PHRca examination distractor states: "The employer was not required to report to Cal/OSHA because the employee was hospitalized for only 16 hours." This is completely false. Prior to 2020, the law required hospitalization "in excess of 24 hours." Under AB 1805, inpatient hospitalization of ANY duration for medical treatment triggers the 8-hour reporting clock.

[!WARNING] Exam Trap 2: Reporting to the Workers' Comp Insurer vs. Cal/OSHA An exam scenario will describe an HR Manager filing a Workers' Compensation Employer's Report (Form 5020) with the insurance carrier within 4 hours of a serious accident, and assuming safety reporting is complete. Notifying your insurance carrier does NOT satisfy Labor Code § 6409.1(b). The employer must separately and directly notify the nearest Cal/OSHA DOSH district office within 8 hours.

[!WARNING] Exam Trap 3: Form 300A Posting Dates Memorize the exact posting window for the annual summary: February 1 through April 30. Distractor options will propose January 1 through December 31, March 1 through May 31, or posting only if recordable injuries occurred. Even with zero injuries, Form 300A must be posted from Feb 1 to Apr 30.

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Cal/OSHA Recordkeeping vs. 8-Hour Serious Injury Reporting Protocol
Test Your Knowledge

At the close of the calendar year, the HR Generalist for a commercial printing enterprise in Burbank with 75 employees aggregates the company's occupational injury and illness records. The company experienced four recordable injuries resulting in 22 lost workdays. The HR Generalist completes Cal/OSHA Form 300A (Annual Summary), signs the preparer line, and consults the Operations Director regarding the required posting protocols. Which operational procedure complies with Title 8 CCR § 14300.32?

A
B
C
D
Test Your Knowledge

On Tuesday at 9:00 AM, a machine operator at a metal stamping plant in Carson catches his left index finger in a hydraulic press, amputating the distal phalanx (bone and fingertip). The worker is transported to an acute care hospital, where orthopedic surgeons perform revision surgery, and he is admitted as an inpatient for overnight antibiotic treatment and pain management. The plant Safety Coordinator learns of the amputation at 9:30 AM Tuesday. Operating under the belief that Cal/OSHA reporting is only required if a hospitalization exceeds 24 hours, the Safety Coordinator delays notifying the state until Wednesday at 2:00 PM (28.5 hours after learning of the event) following the worker's hospital discharge. DOSH conducts an inspection and issues a citation for late reporting under California Labor Code § 6409.1(b) and 8 CCR § 342. What civil penalty must Cal/OSHA assess, and how will OSHAB handle an employer appeal?

A
B
C
D
Test Your Knowledge

A production line supervisor at an electronics manufacturing assembly facility in San Jose reviews four employee injury incident reports that occurred during the workweek to determine which cases must be entered onto the company's Cal/OSHA Form 300 log. Which of the following incidents legally constitutes an OSHA-recordable case under Title 8 CCR § 14300.7?

A
B
C
D