OSHA Recordkeeping Requirements for Construction Contractors: What You Need on Your Site, in Your Files, and in Your Payroll
OSHA recordkeeping is one of those obligations that construction contractors know they have but often handle inconsistently. The forms are straightforward. The confusion comes from knowing which incidents are recordable, when to report versus record, what needs to be posted, how long records must be retained, and how safety documentation intersects with payroll and HR data.
For specialty trade contractors running crews across multiple jobsites, OSHA recordkeeping is not just a site-level task. Worker injury and illness data connects to workers' compensation, payroll adjustments for lost-time injuries, and HR records that must stay current. Here is what the regulations require, what most contractors get wrong, and where recordkeeping fits into the broader back-office operation.
Who Must Keep OSHA Records in Construction
OSHA's recordkeeping regulation (29 CFR Part 1904) applies to most employers, but not all. Knowing whether your company falls under the requirement is the first step.
The Size and Industry Threshold
Employers with 11 or more employees at any point during the previous calendar year must maintain OSHA injury and illness records if they operate in a covered industry. Construction is classified as a high-hazard industry and is not exempt from routine recordkeeping. Employers with 10 or fewer employees are generally exempt from the record-maintenance requirement.
What Applies Even If You Are Exempt
Regardless of company size or exemption status, all employers must report certain severe incidents directly to OSHA:
Fatalities must be reported within 8 hours of learning about the event.
In-patient hospitalizations, amputations, and loss of an eye must be reported within 24 hours.
Reports can be made by calling OSHA at 1-800-321-6742 or submitting online at osha.gov. Failing to report a qualifying incident within the required timeframe is a citable violation, even for employers otherwise exempt from routine recordkeeping.
The Three Forms Every Covered Contractor Must Maintain
Construction companies required to keep OSHA records must maintain three primary documents. Each serves a different purpose, and all three must be kept for five years.
OSHA Form 300: Log of Work-Related Injuries and Illnesses
The 300 Log is the running record of every recordable workplace injury and illness that occurs during the calendar year. For each incident, the log captures the employee's name, job title, date and location of the injury, a description of what happened, and the outcome, including days away from work, restricted duty, or job transfer. A new entry must be added within seven calendar days of learning that a recordable incident occurred.
Construction contractors with multiple jobsites must maintain a separate 300 Log for each establishment expected to operate for a year or longer. For short-term jobsites, OSHA allows contractors to keep a single log at a central location, provided injury information can be transmitted to that location within seven calendar days and records can be produced for any individual site if requested during an inspection.
OSHA Form 301: Injury and Illness Incident Report
The 301 form provides detailed information about each individual incident recorded on the 300 Log: how and where the injury occurred, what the employee was doing at the time, what object or substance caused the harm, and what medical treatment was provided. One Form 301 must be completed for each recordable case, also within seven calendar days.
OSHA Form 300A: Summary of Work-Related Injuries and Illnesses
The 300A is an annual summary that aggregates the totals from the 300 Log for the calendar year: total number of cases, total days away from work, total days of restricted duty, and total injury types. A company executive must review, certify, and sign the 300A. The signed summary must be posted in a visible workplace location from February 1 through April 30 of the following year. Posting is required even if there were zero recordable incidents.
What Counts as a Recordable Incident
Not every workplace injury or illness goes on the 300 Log. OSHA defines specific criteria under 29 CFR 1904.7 that determine whether an incident is recordable.
General Recording Criteria
A work-related injury or illness is recordable if it results in any of the following:
Death
Days away from work
Restricted work activity or job transfer
Medical treatment beyond first aid
Loss of consciousness
A significant injury or illness diagnosed by a physician or licensed healthcare professional
What Is Not Recordable
Incidents that involve only first aid treatment are not recordable. OSHA defines first aid specifically: wound cleaning, bandaging, non-prescription medications, tetanus shots, and similar treatments. Once treatment crosses the first aid threshold (prescription medication, stitches, restricted duty), the case becomes recordable. Injuries during commuting or voluntary recreational activities are generally not work-related and not recordable.
Electronic Submission Requirements
Beyond maintaining records on site, certain employers must also submit injury and illness data electronically through OSHA's Injury Tracking Application (ITA).
Who Must Submit Electronically
The electronic submission requirements have expanded in recent years. As of 2026:
Establishments with 250 or more employees must submit Form 300A data electronically each year.
Establishments with 100 or more employees in designated high-hazard industries (construction is included) must submit Forms 300, 300A, and 301 electronically.
Certain establishments with 20 to 249 employees in high-risk industries must submit Form 300A.
The annual electronic submission deadline is March 2 for the previous calendar year's data. Contractors should verify specific obligations through OSHA's ITA portal, as thresholds apply at the establishment level, not the company level.
Records Retention and Access
OSHA recordkeeping is not a file-and-forget obligation. The records carry ongoing requirements for storage, updates, and access.
Five-Year Retention
Under 29 CFR 1904.33, employers must retain the 300 Log, 300A Summary, and all 301 Incident Report forms for five years following the end of the calendar year they cover. During that five-year period, the 300 Log must be updated if new information emerges about a previously recorded case, such as a change in the number of days away from work or a reclassification of the injury type.
Employee Access
Current and former employees, as well as their authorized representatives, have the right to access OSHA injury and illness records. Employers must make the 300 Log available by the end of the next business day following a request. The 301 Incident Report must be made available within seven calendar days of a request, though personal identifiers of other employees may be removed from the copies provided.
Where OSHA Recordkeeping Connects to Payroll and HR
OSHA recordkeeping is typically managed by a safety manager or project superintendent, but the data overlaps significantly with information the back office already handles.
Lost-Time Injuries and Payroll
When a recordable injury results in days away from work, the payroll system must reflect the absence accurately. On prevailing wage projects, tracking which days a worker was absent due to a workplace injury, versus which days they worked, directly affects certified payroll filings and fringe benefit calculations. Payroll reporting that connects to HR records ensures lost-time data is consistent across safety logs and pay records.
Workers' Compensation and HR Records
Workers' compensation claims generate documentation that overlaps with OSHA 301 data: the nature of the injury, the date it occurred, medical treatment provided, and the worker's return-to-work status. When onboarding and HR records include safety certifications, training completion dates, and incident history, the back office has a complete picture of each worker's safety profile alongside their employment data.
Daily Shift Reports as a Safety Record
Daily shift reports that include safety observations, near-miss documentation, and incident notes serve as a contemporaneous field record that supports OSHA recordkeeping. When a foreman's daily report captures safety data alongside labor and production information, the same document that feeds payroll and job costing also provides the safety documentation that OSHA recordkeeping depends on.
Keeping Records That Hold Up
OSHA recordkeeping is not complicated once the process is consistent. The challenge for construction contractors is maintaining that consistency across multiple jobsites, changing crews, and overlapping project timelines. When safety data, HR records, and payroll information live in connected systems, the documentation that OSHA requires is already being captured as part of normal operations, not assembled after the fact.
Trayd centralizes workforce data, daily field reports, and payroll in one platform, giving contractors a connected record of who worked where, when incidents occurred, and how absences and return-to-work status flow through payroll and compliance. Book a demo to see how field, HR, and payroll data work together.
Frequently Asked Questions
Do all construction contractors need to keep OSHA 300 Logs?
Construction employers with 11 or more employees must maintain OSHA 300 Logs. Employers with 10 or fewer are generally exempt from routine recordkeeping, but all employers must report fatalities within 8 hours and hospitalizations, amputations, or eye loss within 24 hours.
How long must OSHA records be retained?
Five years following the end of the calendar year the records cover. During that period, the 300 Log must be updated if new information changes the classification or outcome of a previously recorded case.
When must the OSHA 300A Summary be posted?
The signed 300A Summary must be posted in a visible workplace location from February 1 through April 30 each year, even if no recordable incidents occurred during the previous year.
What is the difference between a recordable and a reportable incident?
Recordable incidents go on the OSHA 300 Log and include any work-related injury or illness resulting in death, days away, restricted duty, medical treatment beyond first aid, or loss of consciousness. Reportable incidents require direct notification to OSHA within 8 hours (fatalities) or 24 hours (hospitalizations, amputations, eye loss). All reportable incidents are also recordable.
Does OSHA require electronic submission of injury records for construction?
Construction establishments with 100 or more employees must submit Forms 300, 300A, and 301 electronically through OSHA's Injury Tracking Application. Smaller establishments may also be required to submit Form 300A depending on employee count and industry classification.
How do OSHA records connect to construction payroll?
Lost-time injuries affect payroll calculations, including days-away tracking on prevailing wage projects and workers' compensation reporting. When HR, safety, and payroll data share the same system, injury-related absences and return-to-work status are reflected accurately in pay records and compliance filings.
