SAFETY
Job Hazard Analysis (JHA): A Practical Guide for Manufacturing Teams
How to conduct a job hazard analysis that actually identifies and controls risk on the shop floor, not just fills out a form.
Most safety programs are really a collection of
answers to a single question, asked one job at a time: what could go
wrong here, and what are we doing about it. A Job Hazard Analysis is
the tool that makes asking that question systematic instead of
accidental.
Breaking a job into steps first
A JHA starts by breaking a job down into its individual steps, in
the order they’re actually performed — not a general description of
the job, but the specific sequence a worker follows from start to
finish. Skipping this step and jumping straight to “hazards” tends to
produce a generic list that misses the hazard specific to step four of
eleven.
Identifying hazards at each step
| Column | Content |
|---|---|
| Job step | What the worker does, in sequence |
| Potential hazard | What could go wrong at that specific step |
| Recommended control | The action, equipment, or procedure that addresses that hazard |
Involving the person who actually does the job
A JHA written entirely from a safety manager’s office, without
input from the operator who performs the job daily, routinely misses
hazards that only show up in practice — a tool that’s awkward to reach,
a step that gets rushed under production pressure. The most reliable
JHAs are built with the operator present, watching the actual task
rather than an idealized version of it.
Why controls follow the hierarchy, not habit
The recommended control column should default to elimination or
engineering controls before landing on PPE or administrative
procedures — the same hierarchy of controls that governs hazard
response generally. A JHA that lists “wear gloves” for every hazard
without considering whether the hazard could be designed out first is
usually a sign the analysis was rushed.
Where training fits
Job Hazard Analysis fits inside the broader safety culture work
covered in SCMEP’s Safety training catalog. As a
NIST Manufacturing Extension Partnership affiliate
serving South Carolina manufacturers since 1989, our focus is
building JHAs around your actual job steps, not a template borrowed
from another facility.
If your team needs to build or update JHAs for specific jobs, you
can browse the Safety training catalog or email
the training
team.
Once a hazard is identified, PPE selection follows the hierarchy of controls — it’s rarely the first line of defense. See our guide to PPE requirements — eye, face, and hand protection under OSHA 1910.132.
Frequently asked questions
What is a Job Hazard Analysis?
A Job Hazard Analysis (JHA) is a systematic method for identifying hazards specific to each step of a job and recommending controls, breaking a job into its individual steps before identifying what could go wrong at each one.
What are the three columns of a JHA?
The standard format uses three columns: the job step in sequence, the potential hazard at that step, and the recommended control that addresses it.
Why should the operator be involved in writing a JHA?
A JHA written without the operator’s input often misses hazards that only show up in practice, such as an awkward reach or a step that gets rushed under production pressure. The most reliable JHAs are built with the operator present.
Why does the hierarchy of controls matter in a JHA?
Recommended controls should default to elimination or engineering controls before PPE or administrative procedures. A JHA that lists PPE for every hazard without considering whether it could be designed out is usually a sign the analysis was rushed.
