Job Hazard Analysis: find the hazard in every step
A Job Hazard Analysis (JHA) — also called a JSA — is the simplest, most effective safety tool there is: break a job into its steps, find the hazard in each step, and assign a control, working down the hierarchy from elimination to PPE. OSHA calls it one of the most effective risk-reduction tools available (Publication 3071). There is no JHA-specific standard, but the General Duty Clause and construction's own accident-prevention rule (1926.20(b)(2)) both demand exactly the hazard analysis a JHA delivers.
Method per OSHA Publication 3071 · duty verified against osha.gov · July 22, 2026
At a glance
What a JHA is
A systematic look at one job: break it into steps, identify the hazard at each step, and determine the control — turning 'be careful' into a specific, assigned action
OSHA Pub 3071The 5-step method
Select the job → break it into steps → identify the hazards → determine controls (using the hierarchy of controls) → review and update
OSHA Pub 3071The hierarchy of controls
Choose the most effective control available: elimination, then substitution, engineering controls, administrative controls, and — last — PPE
NIOSH / OSHAWho performs it
A competent person who can identify the hazards, ideally with the workers who do the job — construction requires frequent, regular inspections by a competent person
1926.20(b)(2)Is it required?
There is no JHA-specific OSHA standard, but the General Duty Clause requires a workplace free of recognized hazards, and many standards (fall protection, confined space, LOTO, PPE) require the hazard assessment a JHA provides
OSH Act §5(a)(1)When to update
Review at least annually, and whenever the job changes — new equipment, chemical, or location — or after an incident or a near-miss surfaces a hazard you missed
OSHA Pub 3071A JHA has no standard number, but it is how employers actually satisfy the duty to find and fix recognized hazards. The General Duty Clause and 1926.20(b)(2) both carry the same enforcement weight — a serious citation up to $16,550 (2026 amounts, 1903.15(d)).
Where does your control rank?
Step 4 of a JHA — choosing the control — is where most analyses settle for PPE too soon. Pick a level of the hierarchy of controls to see what it means, how effective it is, and why you should try a higher one first.
The hierarchy of controls — pick a level
Most effective at the top. A JHA works down from the top, not up from PPE.
3. Engineering controls
EffectiveIsolate people from the hazard by changing the equipment or workspace.
Examples
Guardrails, machine guards, local exhaust ventilation, wet-cutting on a saw, a tool-integrated dust shroud.
Works without relying on the worker to do anything — the preferred engineered fix on most JHAs.
A JHA is only worth the paper if the crew reads it and it names the RIGHT control for each step. HazComFast builds the job hazard analysis — steps, hazards, and controls picked from the hierarchy — pulls PPE and handling straight from the SDS, and logs the sign-off that proves the task was briefed before work began.
The five-step method (OSHA 3071)
OSHA lays out the same simple sequence for any job. The discipline is in doing it with the workers who actually run the task — not from memory at a desk.
1. Select the job
Start with the jobs that matter most — high injury rates, potential for severe harm, new or changed tasks, and complex sequences. You can't analyze everything at once; prioritize.
2. Break it into steps
List the basic steps a worker actually follows, in order. Observe an experienced worker doing the job rather than writing it at a desk. Aim for 8–12 steps — enough to catch the hazards, not so many nobody reads it.
3. Identify the hazards
For each step, ask what could go wrong: what can strike, crush, cut, shock, burn, or expose the worker? Consider the environment, the materials, and the tools — and pull chemical hazards from the SDS.
4. Determine controls
For each hazard, choose the most effective control available using the hierarchy — elimination, substitution, engineering, administrative, PPE. If your answer is always 'wear PPE,' you skipped the better options.
5. Review & update
Brief the crew on the JHA before the work, get sign-off, and revisit it when the job changes or a near-miss reveals a gap. A JHA in a binder that no one reads controls nothing.
The hierarchy of controls
The whole value of a JHA rests on step 4 — and the hierarchy is the rule for it. Each level down is less effective because it relies more on the worker and less on the design of the work.
Elimination
Physically remove the hazard — prefab at ground level, design out the entry.
Substitution
Replace it with something safer — a water-based product for a solvent.
Engineering controls
Isolate people from it — guardrails, machine guards, ventilation, wet-cutting.
Administrative controls
Change how people work — procedures, training, permits, rotation, signs.
PPE
Protect the worker with equipment — harness, respirator, gloves. The last line.
Most effective at the top. If a JHA answers every hazard with “wear PPE,” it stopped at the bottom of the ladder.
Which jobs to analyze first
You can't JHA everything at once. OSHA 3071 says start where the risk is:
Is a JHA required? Yes — just not by that name
General Duty Clause
Employers must furnish a workplace free from recognized hazards likely to cause death or serious harm — the analysis a JHA performs.
OSH Act §5(a)(1)Construction accident-prevention
Programs with frequent, regular inspections by a competent person (1926.20(b)(2)); instruct employees to recognize and avoid hazards (1926.21(b)(2)).
1926.20(b)(2)Standards that assume it
Fall protection, confined space, LOTO, and the PPE hazard assessment (1910.132(d)) all require the hazard analysis a JHA delivers.
1910.132(d)Where the JHA meets the SDS
A chemical step should pull its controls from the SDS
When a job step involves a hazardous chemical, don’t guess the control — read the safety data sheet. Take the exposure controls and PPE from Section 8, the handling and storage precautions from Section 7, and the first-aid measures from Section 4. That turns “wear gloves” into the specific glove the manufacturer specifies, and ties the JHA to your HazCom program and SDS library.
Key facts
- JHA and JSA (Job Safety Analysis) are the same process under two names — OSHA uses 'JHA' in its official guidance, Publication 3071.
- There is no OSHA standard that requires a JHA by name, but the General Duty Clause (OSH Act §5(a)(1)) requires a workplace free of recognized hazards — the analysis a JHA performs.
- In construction, 1926.20(b)(2) requires accident-prevention programs with frequent, regular inspections by a competent person, and 1926.21(b)(2) requires instructing employees to recognize and avoid hazards — a JHA operationalizes both.
- Step 4 is where JHAs go wrong: defaulting to PPE. The hierarchy of controls puts PPE LAST — try elimination, substitution, and engineering controls first.
- A good JHA is task-specific and written with the workers who do the job — observe the actual sequence, don't invent it at a desk.
- When a task involves a hazardous chemical, the JHA should pull its controls, PPE, and first aid straight from the SDS (Sections 8, 7, and 4).
Tools, guides and related hubs
Free tools
- Job Hazard Analysis Builder
Steps, hazards, controls, and a sign-off sheet — bilingual PDF.
- Pre-Task Plan Generator
The daily, task-level companion to a JHA.
- Toolbox Talk Generator
Brief the crew on the JHA and capture sign-in.
In-depth guides
Job Hazard Analysis FAQ
What is the difference between a JHA and a JSA?
None, really — Job Hazard Analysis (JHA) and Job Safety Analysis (JSA) describe the identical process: break a job into steps, identify the hazard at each step, and determine controls. OSHA uses the term JHA in its official guidance (Publication 3071); some industries prefer JSA. Pick one name and use it consistently.
Is a Job Hazard Analysis required by OSHA?
There is no OSHA standard that requires a JHA by that name. But the General Duty Clause (OSH Act §5(a)(1)) requires employers to furnish a workplace free from recognized hazards, and in construction 29 CFR 1926.20(b)(2) requires an accident-prevention program with frequent, regular inspections by a competent person. A JHA is the industry-standard way to meet both — and many specific standards (fall protection, confined space, LOTO, PPE) require the hazard assessment a JHA provides.
What is the hierarchy of controls?
It is the order of preference for controlling a hazard, most effective first: (1) elimination — remove the hazard; (2) substitution — replace it with something safer; (3) engineering controls — isolate people from it; (4) administrative controls — change how people work; and (5) PPE — protect the worker with equipment. A JHA should exhaust the higher levels before relying on PPE, which is the least effective because it depends on the worker wearing it correctly every time.
Who should perform a JHA?
A competent person who can identify existing and predictable hazards — ideally working alongside the employees who actually do the job, because they know the real steps and the shortcuts. In construction, 1926.20(b)(2) already requires a competent person to make frequent and regular inspections, so the JHA is a natural extension of that role.
How often should a JHA be updated?
Review each JHA at least annually, and update it immediately whenever the job changes — new equipment, a new chemical, a new location or sequence — or after an incident or near-miss reveals a hazard the original analysis missed. In construction, JHAs are task- and project-specific, so a new project or a changed method means a fresh review.
Sources
- osha.gov/sites/default/files/publications/OSHA3071.pdf
- osha.gov/laws-regs/regulations/standardnumber/1926/1926.20
- osha.gov/laws-regs/oshact/section5-duties
The JHA method and hierarchy of controls are per OSHA Publication 3071; the accident-prevention duty (frequent, regular inspections by a competent person) is 29 CFR 1926.20(b)(2), and hazard-recognition instruction is 1926.21(b)(2), verified against osha.gov on July 22, 2026. JHA is a recommended practice, not a numbered OSHA standard. General guidance, not legal advice.
Get the Binder in Order Before the Inspector Arrives. Are You Ready?
OSHA does not give advance notice of inspections (29 CFR 1903.6). Get the binder in order before the opening conference, not during it.
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