OSHA Recordkeeping Forms 300, 300A & 301 Explained (2026)

OSHA Recordkeeping: Forms 300, 300A & 301 Explained

If you manage workplace safety in any capacity, few compliance obligations are more fundamental — or more frequently misunderstood — than OSHA recordkeeping. Forms 300, 300A, and 301 form the backbone of the entire injury and illness tracking system, and getting them wrong can cost you thousands of dollars per violation.

This guide explains exactly what each form is, who must complete it, what triggers a recordable workplace injury, and what the 2026 electronic submission rules mean for your organization.

Why OSHA Recordkeeping Matters

OSHA injury and illness recordkeeping isn't just paperwork — it serves three critical purposes. First, it helps identify hazard patterns before they become tragedies. Second, it gives OSHA inspectors an immediate window into your safety performance. Third, accurate records are your strongest defense against inflated penalty proposals during an inspection.

Failure to comply with OSHA recordkeeping regulations can result in citations and significant penalties. Inaccurate logs, late entries, or missed electronic submissions frequently lead to violations during inspections — and beyond financial consequences, recordkeeping citations often highlight broader gaps in safety management systems. Michael Best & Friedrich

The penalty stakes are real: fines can reach up to $16,550 per violation, with repeat offenses reaching $165,514. NASP

Who Must Keep OSHA Records?

Many employers with more than 10 employees are required to keep a record of recordable work-related injuries and illnesses using OSHA recordkeeping Forms 300, 300A, and 301 — or equivalent forms — with certain industries exempted. Lee Company

Employers with more than 10 employees at any time during the previous year must maintain OSHA logs, unless they fall into a partially exempt industry. Notably, construction is NOT exempt. Davron

Even if your company qualifies for a recordkeeping exemption, all employers — regardless of size — must still report fatalities, hospitalizations, amputations, and loss of an eye directly to OSHA within strict timeframes.

The Three OSHA Recordkeeping Forms

Form 300 — The Log of Work-Related Injuries and Illnesses

The OSHA Form 300 Log is your running record of every work-related injury or illness that meets OSHA's recording criteria throughout the year. It includes the names and titles of all individuals affected, as well as specific information related to the incident — including the date, location, nature of injury, and any days the employee must be away from the workplace. Soloprotect

Key rules for Form 300:

1. The OSHA 300 reporting deadline is set for seven calendar days after an incident occurs. Soloprotect
2. The log is a living document — if a case changes (e.g., restricted duty becomes lost time), you must update it
3. Posting the Form 300 Log is not required, but it must be accessible to employees and their representatives upon request
4. Patterns in your 300 Log reveal recurring injuries that signal systemic hazards — making it one of your most valuable safety management tools. OSHA Outreach Courses

Form 300A — Annual Summary of Work-Related Injuries and Illnesses

OSHA Form 300A is the one-page annual snapshot of your total injury and illness counts for the calendar year, including average employment and total hours worked. Unlike Form 300, this one must be physically posted in your workplace.

The summary must be posted annually from February 1 to April 30 in a visible workplace location — this is one of the most important deadlines for employers and a key Q1 requirement. Davron

Even zero-injury establishments must certify and post Form 300A from February 1 through April 30. OSHA Outreach Courses There are no exceptions for low-incident years.

Form 301 — Injury and Illness Incident Report

OSHA Form 301 is the detailed incident-level report completed for each individual case recorded on your Form 300 Log. It captures more specific information about the injured worker, the circumstances of the incident, and the nature of the injury or illness.

Many employers use their workers' compensation first report of injury as a 301-equivalent, saving duplicate paperwork — this is an accepted practice under OSHA's recordkeeping rules. OSHA Outreach Courses

Form 301 must be completed within seven days of a recordable incident and retained for five years.

What Makes an Injury or Illness "Recordable"?

Not every workplace incident belongs on your OSHA 300 Log. A case is recordable when it is work-related and results in one or more of the following:

1. Days away from work
2. Restricted work or job transfer
3. Medical treatment beyond first aid
4. Loss of consciousness
5. Diagnosis of a significant injury or illness by a licensed healthcare professional

An injury initially treated with first aid may become recordable if the employee later needs prescription medication, restricted duty, or days off — and when that happens, you must update your log retroactively. OSHA Outreach Courses

2026 Electronic Submission Requirements

OSHA electronic recordkeeping expanded significantly and now follows a tiered structure based on company size and industry:

Companies with 250 or more employees in industries not labeled as high-hazard must submit Form 300A annually. Companies with 20 to 249 employees in high-hazard industries listed in Appendix A must also submit Form 300A. Companies with 100 or more employees in high-hazard industries listed in Appendix B must submit Forms 300, 300A, and 301 electronically. Davron

OSHA does not accept completed paper forms by mail or electronic forms by email — all covered establishments must submit their annual data through OSHA's Injury Tracking Application (ITA). WorkCare

Key 2026 deadlines:

1. February 1, 2026 — Certify and complete all 2025 OSHA logs; begin posting Form 300A
2. April 30, 2026 — Last day Form 300A must remain posted
3. March 2, 2026 — Electronic ITA submission deadline for covered employers

If the March 2 submission deadline has passed, establishments that failed to submit must still do so through the ITA — submissions are accepted through December 31. ROI Safety Services

Your Data Is Public — Here's What That Means

One critical fact many employers overlook: OSHA publishes electronically submitted data publicly. Establishment names, addresses, industry codes, and injury data are all made available on OSHA's website for public access. OSHA Outreach Courses

This means your OSHA injury rate — specifically your Total Recordable Incident Rate (TRIR) and DART rate — is visible to clients, contractors, insurers, and job applicants. OSHA also uses this data for Site-Specific Targeting (SST) inspections, meaning a high incident rate can directly trigger an OSHA inspection. CONEXPO-CON/AGG

The formula for TRIR is: (Number of Recordable Cases × 200,000) ÷ Total Hours Worked

Record Retention Rules

You must save the OSHA 300 Log, any privacy case list, the annual summary, and OSHA 301 Incident Report forms for five years following the end of the calendar year that these records cover. EHS Insight

During that retention window, records must remain accessible to current and former employees, their authorized representatives, and OSHA.

Common Recordkeeping Mistakes to Avoid

The most costly recordkeeping errors include incorrect categorization of recordable versus non-recordable cases, missing restricted duty versus days-away distinctions, and incomplete Form 301 entries — gaps that can expose employers to citations, audit failures, and increased risk exposure. Davron

A few best practices to stay clean:

1. Log every incident within 7 days — no exceptions
2. Review logs monthly for accuracy and updates
3. Train your HR and safety teams on OSHA recordability criteria together
4. Conduct an internal OSHA recordkeeping audit before March each year

Conclusion

OSHA Forms 300, 300A, and 301 are not just regulatory boxes to check — they are the foundation of a data-driven workplace safety program. With 2026 bringing expanded OSHA electronic submission requirements, publicly visible injury data, and Site-Specific Targeting inspections driven by your reported rates, accurate recordkeeping has never carried higher stakes. Stay consistent, train your team, hit your deadlines, and use your own data to make your workplace measurably safer.