OSHA 300 forms are the recordkeeping system that employers in most industries must maintain to track workplace injuries and illnesses. The system uses three related forms: the OSHA 300 Log, the OSHA 300A Summary, and the OSHA 301 Incident Report. Together they document workplace injuries throughout the year, summarize them for posting and electronic submission, and capture detailed incident information for each recordable case. Getting these forms right matters because OSHA actively audits compliance, and citations for recordkeeping failures can be significant.

This guide covers everything you need to know about OSHA 300 forms — who must complete them, what counts as a recordable injury or illness, how to fill out each form correctly, the posting and submission requirements, the deadlines that must be met, and the common mistakes that trigger OSHA citations. Whether you're new to OSHA recordkeeping or an experienced safety professional looking to refresh your knowledge, this comprehensive overview ensures you understand the system thoroughly.

Determining what counts as a recordable injury or illness is the most important judgment call in OSHA recordkeeping. Generally, an injury or illness is recordable if it's work-related (occurred in the work environment) AND results in one of these outcomes: death, days away from work, restricted work or job transfer, medical treatment beyond first aid, loss of consciousness, or significant injury or illness diagnosed by a physician. If none of these outcomes apply, the case typically isn't recordable even if the worker visited a doctor.

The distinction between first aid and medical treatment is the most common source of confusion. OSHA defines first aid narrowly: certain specific treatments that don't trigger recordability. Treatments beyond first aid (most prescription medications, sutures, etc.) make the case recordable. The list of qualifying first aid treatments includes non-prescription medications at non-prescription strength, cleaning and bandaging cuts, hot or cold therapy, eye patches, removing foreign bodies with simple means, drinking fluids for heat stress, and several others. Anything beyond this specific list moves the case into recordable territory.

Work-relatedness is the other key threshold. An event or exposure in the work environment that caused or contributed to a resulting condition is presumed work-related. This includes injuries during work activities, exposures from work, and aggravation of pre-existing conditions due to work. Specific exclusions exist: eating in a cafeteria, voluntary blood donation, personal grooming, common cold and flu (in most cases), and certain other circumstances. The work-relatedness determination should be made by a qualified person who understands OSHA's specific definitions.

Filing the OSHA 300 Log requires careful attention to detail. For each recordable case, fill in: case number (sequential), employee name (or use case number for privacy in some circumstances), job title, date of injury or onset of illness, where the event occurred (department or work area), description of injury or illness (what happened and what was injured), and then check the appropriate outcome column. Use one row per case. Update the log as soon as you learn about a recordable case — generally within 7 calendar days.

The OSHA 300A Summary is the form most employees see because it must be posted publicly each year. The summary aggregates the 300 Log data into totals: total cases, cases with days away, cases with job transfer or restriction, total days away, total days of restriction, and totals by injury category (injuries, skin disorders, respiratory conditions, poisonings, hearing loss, all other illnesses). A company executive must certify the summary. The completed and certified summary must be posted in a workplace location where employees frequently see notices, from February 1 through April 30 of the following year.

The OSHA 301 Incident Report (or equivalent) requires the most detail. For each recordable case, document: employee information (name, address, date of birth, date hired, gender), physician or healthcare professional who treated the case, where treated, whether hospitalized overnight, and detailed information about the case (when the incident occurred, what the employee was doing, what happened, what was the injury or illness, what object or substance directly harmed the employee, date of death if applicable). Complete within 7 calendar days of learning about the recordable case.

The posting requirement for OSHA 300A summaries is one of the most visible aspects of OSHA recordkeeping. From February 1 through April 30 of each year, you must post the previous year's 300A summary in a location where employees frequently see notices. Common locations include break rooms, near time clocks, on safety bulletin boards.

The posting must include the entire OSHA 300A form, not just totals. Take it down on May 1 — though you may also keep posting for the full year if you choose. The posting requirement applies even if your company had no recordable injuries during the year (post a summary showing zero in each category).

For multi-establishment companies, each separate establishment generally needs its own set of 300 forms. An establishment is a single physical location where business is conducted. A company with multiple offices, plants, or stores typically maintains separate records for each. The 300A posting is done at each establishment separately. Electronic submission can be done in bulk through the ITA for all your covered establishments. Be careful about the establishment definition — getting it wrong leads to either redundant work (treating one establishment as multiple) or missing records (treating multiple establishments as one).

Retention requirements are 5 years following the end of the calendar year that the records cover. Keep your 300, 300A, and 301 forms (or equivalent records) for at least 5 years. Many employers retain longer for liability and workers' compensation purposes. The records must be available for OSHA inspection at any time during an investigation. They also must be available to employees, former employees, and their representatives upon request. Build a reliable system for storing and retrieving these records over the multi-year retention period.

For new employers learning OSHA recordkeeping, the best approach is to read the actual regulation (29 CFR 1904) and OSHA's recordkeeping handbook. OSHA also offers free recordkeeping training through its outreach training program. Many state OSHA programs offer state-specific training. Industry associations often provide training tailored to specific industries. The free OSHA resources are generally excellent and cover the material thoroughly. Investing time in proper training prevents the much larger cost of recordkeeping citations later.

Software solutions help with OSHA recordkeeping for medium and large employers. Safety management systems like Cority, Intelex, EHS Insight, and others handle the recordkeeping forms, calculations, electronic submission, and reporting automatically. The investment makes sense for organizations with hundreds of employees or multiple locations where manual recordkeeping becomes impractical. For smaller employers, OSHA's free forms work fine when used carefully.

Working with workers' compensation programs makes OSHA recordkeeping more efficient. Most workers' comp claims involve recordable injuries. The information captured in workers' comp filings often satisfies OSHA 301 requirements. Build coordination between your workers' comp administrator and OSHA recordkeeping process so each injury gets recorded correctly in both systems without duplicate data entry. Many small businesses use their workers' comp insurance carrier's recordkeeping support as their primary OSHA compliance mechanism.

Multi-state operations complicate OSHA recordkeeping somewhat. Most states follow federal OSHA rules for recordkeeping. About half the states operate their own OSHA programs, called State Plans. State Plan states (California, Oregon, Washington, etc.) generally adopt federal OSHA recordkeeping requirements but may add state-specific elements. Check your specific state's requirements if you operate in State Plan jurisdictions. For multi-state operators, you generally must comply with federal requirements in non-State-Plan states and state-specific requirements in State Plan states.

For temporary workers and contractors, recordkeeping responsibility depends on the relationship. Workers from staffing agencies are generally recorded by the employer with day-to-day supervisory control, not the staffing agency itself. Independent contractors who control their own work generally record their own injuries on their own books, not yours. The distinction matters and isn't always clear-cut. Document your worker classifications and recordkeeping decisions for cases that might be ambiguous, so you can explain your reasoning if OSHA asks.

Severely-affected industries and large employers face additional reporting requirements beyond annual recordkeeping. Severe injury reporting (deaths within 8 hours; hospitalizations, amputations, eye losses within 24 hours) is a separate requirement from the annual 300 forms. These severe injuries must be reported to OSHA directly via phone or web, regardless of company size or industry. Failure to report severe injuries promptly produces large citations. Train supervisors on the immediate reporting requirements so severe events get reported within the required windows.

OSHA inspections that include recordkeeping review look for systematic compliance, not just one-time mistakes. Inspectors compare your 300 logs against workers' compensation filings, look at OSHA 301 reports for completeness, verify posting compliance, and check that your recordability determinations align with OSHA definitions. Maintaining clean, well-organized records throughout the year prepares you for any inspection. Last-minute scrambling to clean up records before an inspection rarely works and may actually create additional issues.

OSHA recordkeeping reform discussions occur periodically as the rules evolve. The electronic submission requirements have expanded over time to cover more employers. Public availability of submitted data has been adjusted based on privacy and competitive concerns. Stay informed about regulatory developments through OSHA email updates, industry associations, and professional safety publications. Major rule changes typically come with implementation periods, but staying ahead of changes is easier than reacting after deadlines.

Beyond the recordkeeping requirement itself, OSHA 300 data is valuable for understanding workplace safety performance. Trends in injury types reveal where prevention efforts should focus. Comparison year-over-year shows whether safety programs are working. Benchmarking against industry averages (available through Bureau of Labor Statistics data) shows how your company compares. The data exists because OSHA requires it; using it for prevention purposes makes the recordkeeping investment pay back beyond regulatory compliance.

For organizations building or improving safety programs, OSHA recordkeeping is the data foundation. Strong recordkeeping enables good safety analysis. Sloppy recordkeeping makes analysis impossible. Investment in recordkeeping discipline pays back through clearer understanding of where injuries actually happen, which enables more targeted prevention. Many successful safety improvement programs trace their effectiveness back to improvements in basic recordkeeping that revealed problems previously obscured by inconsistent reporting.

The administrative burden of OSHA recordkeeping is real but manageable for organizations that invest in proper systems and training. Software, standard processes, and clear ownership reduce the work significantly. Penalty risks for non-compliance are substantial — willful violations can carry penalties of $150,000+ per violation, plus the costs of remediation, legal defense, and reputational damage. The investment in good recordkeeping protects against citations while providing valuable safety performance data for your organization.

Industry-specific recordkeeping nuances exist beyond general OSHA rules. Healthcare facilities have specific recordkeeping requirements for needlestick injuries and bloodborne pathogen exposures. Construction has detailed recordkeeping for specific hazard categories. Maritime, agriculture, and certain other sectors have their own modifications to the basic OSHA recordkeeping framework. If you work in a regulated industry, check whether your industry adds requirements on top of the general OSHA recordkeeping rules covered in this guide.

For organizations that have never been audited, the temptation is to be lax about recordkeeping discipline because the rules aren't being actively enforced day-to-day. This is a mistake. OSHA inspections often come without warning, triggered by an employee complaint, an injury report, a referral from another agency, or random selection through targeted programs. Maintaining records correctly all the time, rather than scrambling when an inspection arrives, is the only reliable approach. Recordkeeping shortcuts that worked for years can produce significant citations when an inspection finally happens.

For organizations with strong safety cultures, OSHA recordkeeping integrates naturally into broader safety management. Incident investigations produce the data needed for 300 and 301 forms. Near-miss reporting programs identify trends before they produce recordable injuries. Continuous improvement initiatives use recordkeeping data to track progress on specific safety goals. The recordkeeping isn't a separate compliance burden — it's the data backbone of an effective safety program. Organizations that view it this way generally have both better recordkeeping compliance and better safety outcomes.

One final consideration: OSHA recordkeeping is a legal requirement, but it's also an opportunity. Companies that handle recordkeeping well develop better understanding of their workplace risks. They can demonstrate due diligence in legal disputes. They can benchmark against industry peers. They can show insurance carriers their actual safety performance. Each of these benefits compounds the value of doing recordkeeping correctly. The cost of compliance is small compared to the value of the resulting safety insights and protection from legal exposure.

Building strong recordkeeping practices into your organization takes time but pays dividends through every dimension of safety management. Train multiple people on the determinations and processes so the work isn't dependent on one person. Document your decision-making approach so consistency stays high even when responsible individuals change. Audit your own records periodically to catch errors before OSHA does.

These habits transform recordkeeping from a reluctant compliance burden into a useful operational tool that improves your workplace safety culture meaningfully over time and across all of the workforce that participates in the program throughout each annual cycle of reporting and continuous safety improvement review activity that takes place over the course of the whole annual calendar year and many years to follow afterward as compliance programs continue to develop in size and sophistication.