OSHA collects data recorded on the OSHA Form 300A Summary of Work-Related Injuries and Illnesses from establishments with 250 or more employees not listed in the Exempt Industries list (29 CFR 1904 Subpart B, Appendix A) and from establishments with 20-249 employees listed in the 300A Table (29 CFR 1904 Subpart E, Appendix A).

OSHA collects data recorded on the Form 300 Log of Work-Related Injuries and Illnesses and OSHA Form 301 Injury and Illness Incident Report from establishments with 100 or more employees listed in 29 CFR 1904 Subpart E, Appendix B.

Recording or reporting a work-related injury, illness, or fatality does not mean that the employer or employee was at fault, that an OSHA rule has been violated, or that the employee is eligible for workers' compensation or other benefits.

Posted data includes establishments covered by Federal OSHA and establishments covered by a State Plan. OSHA has not removed data that was submitted by establishments that were not required to submit data.

OSHA provides establishment-level injury and illness data from 1995-2011 through the OSHA Data Initiative.

Since January 2015, employers have been required to report any work-related amputation, in-patient hospitalization, or loss of an eye within 24 hours of receiving information about the event. The Severe Injury Reports Webpage provides these data for download.

OSHA provides information about work related fatalities that occurred since 2017 on the the Fatality Inspection Data Page.

OSHA Injury and Illness Recordkeeping and Reporting Requirements

OSHA Forms for Recording Work-Related Injuries and Illnesses

Data linkage: Establishment data from the Summary Data files can be linked to Case Detail files using the field establishment_id. Note that many establishments are required to submit Summary Data but are not required to submit Case Details. Additionally, establishments that are required to submit case detail data but had no recordable injuries or illnesses are included in the Summary Data but are not included in the Case Detail files.

Data Quality: While OSHA takes multiple steps to ensure the data collected are accurate, problems and errors invariably exist for some establishments. Efforts are made during the collection cycle to correct submission errors; however, some remain unresolved. OSHA does not validate the employee or injury and illness counts reported by establishments. Concluding that establishments are the "most dangerous" or the "least dangerous" solely based on whether they have the highest or lowest rates from these data would be inappropriate.

Rate Calculation: The formula to compute an incidence rate of occupational injuries and illnesses is: (Number of injuries and illnesses x 200,000) / Employee hours worked = Incidence rate. The Total Case Rate (TCR) includes all cases recorded on the OSHA Form 300 or 300A (Column H + Column I + Column J). The Days Away, Restriction, and Transfer (DART) Rate includes cases recorded in Column H + Column I. Visit the Bureau of Labor Statistics for more information on injury and illness incidence rates.

This data contains establishment summary data and case detail data collected through the ITA from certain establishments that are required by regulation to electronically submit information to OSHA from their recordkeeping forms. These requirements are based on establishment industry and size and do not cover all establishments. Thus, the data may not be generalizable to the worker population. For generalizable data including occupational injury and illness counts and incident rates see the BLS Survey of Occupational Injuries and Illnesses (SOII).

These OIICS codes, which cover standardized categories for nature of injury, part of body affected, event or exposure, and source, were generated in collaboration with Bureau of Labor Statistics (BLS) using their AI-powered auto-coder. This marks the first time OSHA has provided OIICS-coded data for ITA submissions.

Adding these codes to the five narrative fields collected from OSHA Forms 300 and 301 enables data users to group similar cases and analyze trends more efficiently. For example, if an employer reports “Worker steam-burned their forearm,” the case would be coded as:

• Nature of injury: Burns and corrosions
• Event: Exposure to temperature extremes
• Part of body: Arm
• Primary source: Steam, vapors, liquids, ice
• Secondary source: Unspecified

Analyzing narrative data has traditionally been complex, even for advanced users. With standardized OIICS codes, this dataset becomes more accessible and powerful for employers, researchers, and the public, in turn supporting data-driven efforts to improve workplace safety. This initiative demonstrates how AI can enhance analytic efficiency and represents a significant step forward in OSHA’s ability to support evidence-based safety improvements.