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Home›Courses›Safety Training›Incident Investigation: Root Cause to Corrective Action

Incident Investigation: Root Cause to Corrective Action

20 minutesEN / ES / MLCCSafety Training29 CFR 1904.39 - Reporting Requirements; 29 CFR 1910.119(m) - PSM Incident Investigation
Quick Answer

Incident Investigation: Root Cause to Corrective Action is a 20-minute online course that trains supervisors and safety personnel on how to investigate workplace incidents, identify root causes, and implement corrective actions to prevent recurrence, consistent with OSHA's recordkeeping and reporting requirements under 29 CFR 1904. It is designed for safety managers, supervisors, and HR professionals and includes a downloadable certificate of completion.

Course Overview

OSHA emphasizes that every workplace incident - whether it results in injury, illness, or a near miss - should be investigated to identify root causes and prevent recurrence. Under 29 CFR 1904.39, employers must report fatalities within 8 hours and in-patient hospitalizations, amputations, and eye losses within 24 hours. Beyond reporting, OSHA's voluntary Safety and Health Program Management Guidelines recommend that employers investigate all incidents and near misses. For facilities covered by the Process Safety Management standard (29 CFR 1910.119), incident investigation is explicitly required. Failure to properly report incidents can itself result in OSHA citations, with serious violations carrying penalties of up to $16,550.

This course trains your supervisors and safety team to conduct effective incident investigations that go beyond assigning blame to uncover the systemic failures that allowed the incident to occur. Your team will learn a structured investigation process: securing the scene, gathering evidence, interviewing witnesses, identifying root causes using proven analytical methods, and developing corrective actions that address the underlying problems. The course emphasizes that the goal of every investigation is prevention, not punishment.

What You'll Learn

  • OSHA incident reporting requirements under 29 CFR 1904.39
  • The five-step incident investigation process from scene management to corrective action
  • Root cause analysis methods including the 5 Whys and contributing factor analysis
  • Witness interview techniques that focus on facts, not blame
  • Evidence preservation and documentation best practices
  • Developing effective corrective actions using the hierarchy of controls
  • Investigation report writing and follow-up verification
  • Near miss investigation and its role in preventing future incidents

Who Needs This Training

  • Safety managers and coordinators responsible for investigating workplace incidents
  • Frontline supervisors who are typically first on the scene after an incident
  • HR professionals involved in incident documentation and regulatory reporting
  • Members of safety committees or incident investigation teams
  • Operations managers accountable for implementing corrective actions
  • Any employee serving on an incident investigation team

Regulatory Background

OSHA requires employers to report certain serious incidents under 29 CFR 1904.39: fatalities within 8 hours, and in-patient hospitalizations, amputations, or losses of an eye within 24 hours. For employers covered by the Process Safety Management standard (29 CFR 1910.119(m)), incident investigation is mandatory for any event that resulted in, or could reasonably have resulted in, a catastrophic release of a highly hazardous chemical. Investigation must begin within 48 hours, include a report with root causes and corrective recommendations, and the report must be retained for five years. OSHA's voluntary Safety and Health Program Management Guidelines recommend that all employers investigate all incidents and near misses regardless of severity. Failure to report required incidents to OSHA can result in citations with penalties of up to $16,550 for serious violations and $165,514 for willful violations. OSHA increasingly expects employers to demonstrate that they have a functioning incident investigation process as part of enforcement inspections.

Frequently Asked Questions

Under 29 CFR 1904.39, employers must report all work-related fatalities to OSHA within 8 hours of learning about the death. In-patient hospitalizations, amputations, and losses of an eye must be reported within 24 hours. These timeframes begin when the employer becomes aware of the event, not when the incident occurred. Reports can be made by phone to the nearest OSHA Area Office or by calling 1-800-321-6742.
A root cause is the fundamental, underlying reason an incident occurred - the failure in a system, process, or practice that, if corrected, would prevent the same type of incident from happening again. Contributing factors are additional conditions or actions that increased the likelihood or severity of the incident but are not the primary cause. An effective investigation identifies both the root cause and all significant contributing factors.
OSHA does not have a general industry requirement mandating near-miss investigation for most employers. However, OSHA's voluntary Safety and Health Program Management Guidelines strongly recommend investigating near misses because they reveal hazards before they cause injury. For PSM-covered facilities, investigation is required for any incident that could reasonably have resulted in a catastrophic release. Industry best practice is to treat near misses with the same investigative rigor as injury-producing incidents.
OSHA injury and illness records (Forms 300, 300A, and 301) must be retained for five years following the calendar year they cover, per 29 CFR 1904.33. For PSM-covered facilities, incident investigation reports must also be retained for five years under 29 CFR 1910.119(m). Best practice is to retain all incident investigation reports indefinitely, as they may be relevant for litigation, insurance claims, or pattern analysis long after the regulatory minimum retention period.
Yes. The involved employee is typically the best source of information about what happened. OSHA's approach emphasizes that investigations should focus on identifying system failures, not assigning blame. Interviewing the involved employee separately from others, using open-ended questions, and clearly communicating that the purpose is prevention rather than discipline will yield more accurate and useful information.

Related Courses

Incident investigation training is foundational for any safety program and pairs well with Workplace Safety: Job Safety Analysis, which teaches the proactive hazard analysis method that can prevent incidents before they occur. Employers building a comprehensive safety management program should also consider the General Industry Safety bundle, which covers the core OSHA compliance topics that generate the most citations.

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$24.95
per person
Volume Pricing
Team Size Price per Person
1 - 9$24.95
10 - 24$19.95
25 - 49$17.95
50 - 99$17.50
Subtotal $24.95
Language

This course is available in English, Spanish, and Multi-Language CC at no additional charge.

Certificate of completion included. Downloadable upon passing the final assessment.

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$24.95
per person