Hazard identification is the process of finding and recording anything in the workplace that has the potential to cause harm, whether to people, property or the environment. It answers a simple question: what could hurt someone here? Once a hazard is identified, it can be assessed for risk and controlled.
Hazard identification matters because a hazard that has not been found cannot be controlled. Most serious incidents involve hazards that someone could have spotted in advance, which is why OSHA treats hazard identification and assessment as a core element of any safety and health program.
What Is Hazard Identification?
A hazard is a source or situation with the potential to cause harm, such as an unguarded machine, a chemical, a wet floor or a poorly designed task. Risk is the combination of how likely that harm is and how severe it would be. Hazard identification comes first; risk assessment follows and decides which hazards need the most urgent action.
OSHA's Recommended Practices for Safety and Health Programs describe hazard identification and assessment as an ongoing activity, not a one-time exercise. ISO 45001 likewise requires organizations to have a process for ongoing, proactive hazard identification. Several OSHA standards also require specific hazard assessments, for example the PPE hazard assessment and written certification under 29 CFR 1910.132(d).
Main Types of Workplace Hazards
- Safety (physical) hazards: moving machinery, falls, electrical energy, vehicles, sharp edges, fire and explosion.
- Chemical hazards: gases, vapors, dusts, fumes and liquids that are toxic, corrosive, flammable or reactive.
- Physical agents: noise, vibration, heat and cold, and ionizing or non-ionizing radiation.
- Biological hazards: bloodborne pathogens, molds, bacteria and viruses.
- Ergonomic hazards: heavy lifting, awkward postures, repetition and forceful exertions.
- Psychosocial and organizational hazards: fatigue, workplace violence, excessive workload and poor communication.
Hazard Identification Methods
No single method finds every hazard. Most programs combine several:
- Workplace inspections: planned walk-throughs using checklists, covering equipment, housekeeping, exits, electrical systems and PPE use.
- Job hazard analysis: breaking a task into steps and identifying the hazards in each step. See job hazard analysis.
- Worker reports and observations: workers often know the hazards best. Encourage reporting of hazards, unsafe conditions and near misses.
- Incident and near miss data: reviewing injury logs, first aid records and near miss reports for patterns.
- Information review: safety data sheets, equipment manuals, manufacturer warnings and industry guidance.
- Exposure monitoring: air sampling, noise surveys and heat measurements to identify health hazards that cannot be seen.
- Change reviews: checking for new hazards before introducing new equipment, materials, processes or layouts.
- Formal process hazard analyses: methods such as HAZOP or what-if analysis for complex chemical processes.
Hazard Identification Examples
- Warehouse: an inspection finds forklifts and pedestrians sharing an aisle with no marked walkway, damaged racking and a blocked exit.
- Maintenance: a job hazard analysis of a pump repair identifies stored hydraulic pressure, hot surfaces and a chemical residue in the line.
- Construction: a worker reports an unguarded floor opening and a ladder that does not extend above the landing.
- Office: a review of discomfort reports points to poorly adjusted workstations and long periods of static sitting.
- Laboratory: a review of safety data sheets shows an incompatible acid and oxidizer stored together.
In each case, the hazard is recorded, assessed and assigned a control, rather than just noted.
When to Identify Hazards
Hazard identification should happen continuously, with extra attention at these points:
- Before new work, equipment, chemicals or sites are introduced.
- When processes, staffing or procedures change.
- After an incident, near miss or worker complaint.
- During non-routine work such as maintenance, startup, shutdown and emergencies.
- On a regular schedule through inspections and program reviews.
How to Identify Hazards Step by Step
- Define the scope. Choose the area, task or process to review, including routine and non-routine activities.
- Gather information. Collect safety data sheets, manuals, past incident reports and existing assessments.
- Involve workers. Ask the people who do the job what could go wrong and what nearly has.
- Walk and observe. Inspect the area and watch the work as it is actually done, not just as written.
- Record each hazard. Describe the hazard, its location, who could be harmed and how.
- Assess and prioritize. Rate likelihood and severity so the most serious hazards are addressed first.
- Assign controls. Choose controls using the hierarchy of controls, and set owners and due dates.
- Close the loop. Tell the person who reported the hazard what was done, and verify the control works.
Common Mistakes to Avoid
- Only looking for hazards after something goes wrong.
- Ignoring non-routine tasks like maintenance, cleaning and changeovers, where many serious injuries occur.
- Focusing on obvious safety hazards and missing health hazards such as noise, dust or chemicals.
- Collecting hazard reports without acting on them, which quickly stops people from reporting.
- Not revisiting assessments when equipment, materials or processes change.
How SMS360 Helps
SMS360's Safety Observations module lets workers report hazards and unsafe conditions from the field, so findings are recorded as they happen. Inspection checklists can be completed in Audits & Inspections, identified hazards can be rated in Risk Assessment, and follow-up actions can be assigned and tracked to completion.
Frequently Asked Questions
What is the difference between hazard identification and risk assessment?
Hazard identification finds what could cause harm. Risk assessment evaluates how likely and how severe that harm would be, so you can decide which hazards to control first and which controls are needed.
Does OSHA require hazard identification?
Several OSHA standards require specific hazard assessments, such as the PPE hazard assessment in 29 CFR 1910.132(d) and process hazard analysis under the process safety management standard. OSHA's Recommended Practices also treat hazard identification as a core program element, and many state plans require it in written safety programs.
Who should be involved in hazard identification?
Supervisors, safety professionals and, most importantly, the workers who do the job. Workers see hazards every day and often know about near misses that never reach a report.
How often should hazards be reviewed?
Continuously through reporting and observation, on a regular schedule through inspections, and whenever work, equipment or materials change or an incident occurs.
