Job Hazard Analysis (JHA) is a way to help workers focus on accident prevention by identifying the steps of a job, the hazards involved, and the controls needed to complete the work safely. A JHA helps workers and supervisors recognize hazards before work begins so corrective actions can be taken before someone gets hurt.
A well-developed JHA improves communication between workers, supervisors, and contractors by making sure everyone understands the work plan and the safety expectations before the task starts. JHAs are especially important for non-routine work, high-hazard activities, new job assignments, or tasks where conditions may change throughout the day.
What is a JHA?
A Job Hazard Analysis is sometimes called by different names, depending on the company culture or industry, including:
- Pre-Task Hazard Analysis
- Job Task Analysis
- Pre-Job Plans
- Job Safety Analysis (JSA)
- Pre-Task Planning
- Safety Task Analysis
Regardless of the name used, the purpose is the same: identify hazards before work begins and determine the safest way to complete the task.
Why JHAs are Important
When incidents occur, one of the first questions that may be asked by management, investigators, or OSHA representatives is whether a JHA was completed for the work activity.
Reviewing the JHA can help determine whether:
- workers were aware of the hazards
- proper controls were identified
- the crew discussed the work before starting
- conditions changed during the task
- employees understood the safe work procedures
A JHA is not just paperwork. It is a planning tool that helps reduce injuries, property damage, equipment incidents, and production delays.
Supporting OSHA Compliance
OSHA does not specifically require a Job Hazard Analysis for every task, but OSHA standards and the General Duty Clause require employers to identify hazards and provide a workplace free from recognized dangers.
OSHA Standard Section 5(a)(1) Each employer shall furnish to each of his employees employment and a place of employment which are free from recognized hazards that are causing or likely to cause death or serious physical harm to his employees.
Creating a JHA
A specific work task can be separated into a series of simple steps. Breaking the job down into smaller parts makes it easier to identify hazards that might otherwise be overlooked.
Identifying Hazards
For each step of the task, workers should consider:
- What can go wrong?
- How could someone get hurt?
- What could cause an accident?
- How likely is the hazard to occur?
- What controls are needed to reduce the risk?
As the steps are identified, workers should think about common hazard categories and make sure they are addressed in the JHA.
Common Hazard Types
Common hazards that may need to be included in a JHA include:
- Struck against or struck-by hazards
- Contact with or contact-by hazards
- Caught-in, caught-on, or caught-between hazards
- Falls to the same level or to a lower level
- Overexertion or exposure hazards
Examples of hazards or tasks that may require a JHA include:
- Working at heights
- Slippery or uneven surfaces
- Exposed moving machinery parts
- Fires or explosions
- Noise exposure
- Electrical hazards
- Toxic Emissions
- Corrosive chemicals
- Oxygen-deficient atmospheres
- Repetitive tasks
- Heavy lifting
- Overhead work
- Rigging activities
- Use of heavy equipment
- Working with powder actuated tools
- Confined space entry
- Hot work operations
- Trenching and excavation
- Line-of-fire hazards
JHA Worker Participation
Workers performing the task should participate in the JHA process whenever possible. Employees doing the work often recognize hazards, shortcuts, or changing conditions that others may miss.
Reviewing the JHA Before Work Begins
A JHA should be reviewed with the crew before work starts to ensure everyone understands:
- the work steps
- the identified hazards
- required PPE
- emergency procedures
- communication methods
- equipment and tool requirements
- stop work authority if unsafe conditions develop
If conditions change during the task, the JHA should be updated to reflect the new hazards and controls.
JHAs Help Prevent Incidents
A Job Hazard Analysis encourages workers to slow down, think through the task, and focus on safety before work begins. Many incidents happen because hazards were overlooked, assumptions were made, or work started without proper planning.
Taking a few minutes to complete and discuss a JHA can help crews recognize hazards early, improve communication, and prevent injuries before they happen.
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