What Is a Job Hazard Analysis (JHA)?

A job hazard analysis (JHA) is a structured, step-by-step technique for identifying the hazards associated with each step of a job and determining the best way to control those hazards before they cause injury or illness. Also called a job safety analysis (JSA) or task hazard analysis, the JHA breaks a task into its individual steps, identifies the potential dangers at each step and then prescribes specific preventive measures. It is one of the most effective proactive safety tools available - and one of the most underused.

OSHA does not mandate a specific JHA format, but the agency strongly recommends the practice in its publication Job Hazard Analysis (OSHA 3071). Regulatory bodies in Canada, Australia and the UK similarly endorse JHAs as a core element of workplace risk management. When done properly, a JHA does more than satisfy a compliance checkbox - it fundamentally changes how workers think about the tasks they perform every day.

Why Job Hazard Analyses Matter

The value of a JHA lies in its preventive nature. Most workplace incidents are not caused by a single catastrophic failure. They result from a chain of small oversights - a skipped step, a missing guard, an assumption that "it will be fine." A thorough job hazard analysis interrupts that chain before it forms.

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Key benefits of conducting JHAs include:

How to Conduct a Job Hazard Analysis: Step-by-Step

The JHA process is straightforward, but it demands attention to detail and genuine worker involvement. Rushing through it - or worse, completing it from behind a desk without observing the actual work - defeats the purpose entirely.

Step 1: Select the Job to Analyze

You cannot analyze every task simultaneously, so prioritize. Start with jobs that have:

OSHA recommends reviewing your injury and illness logs, near-miss reports and workers' compensation data to guide your selection. High-risk tasks such as working at heights, confined space entry, energized electrical work and heavy equipment operation should always be near the top of the list.

Step 2: Break the Job into Steps

Observe the task being performed by an experienced worker. Document each step in sequence - not so broadly that you miss hazards and not so granularly that the analysis becomes unwieldy. Most jobs can be effectively captured in 8 to 15 steps.

For example, a job titled "Changing a Flat Tire on a Company Vehicle" might break down as follows:

  1. Pull vehicle to a safe location and activate hazard lights
  2. Retrieve spare tire, jack and lug wrench from the trunk
  3. Place wheel chocks behind the opposite tires
  4. Loosen lug nuts on the flat tire
  5. Position the jack and raise the vehicle
  6. Remove lug nuts and flat tire
  7. Mount spare tire and hand-tighten lug nuts
  8. Lower the vehicle and torque lug nuts to specification
  9. Store equipment and flat tire; remove wheel chocks

Step 3: Identify the Hazards at Each Step

For every step, ask: "What could go wrong?" Consider all categories of hazards:

Do not limit yourself to the obvious. A worker loosening lug nuts on a roadside faces the hazard of passing traffic just as much as the hazard of a slipping wrench. Both must be documented.

Step 4: Determine Preventive Measures

For each hazard, determine how to eliminate or control it. Follow the hierarchy of controls:

  1. Elimination: Remove the hazard entirely (e.g., use roadside assistance instead of manual tire changes)
  2. Substitution: Replace the hazardous element with something safer
  3. Engineering controls: Install guards, barriers, ventilation, or mechanical aids
  4. Administrative controls: Implement procedures, training, signage, or job rotation
  5. PPE: Provide personal protective equipment as a last line of defense

The best JHAs combine multiple levels of control. Relying solely on PPE - the weakest control - is a common and dangerous shortcut.

Job Hazard Analysis Template

Use the following structure for your JHA documentation. This format aligns with OSHA guidance and is widely accepted across industries.

Job Step Potential Hazard(s) Preventive Measure(s)
1. Pull vehicle to safe location Struck by passing traffic; vehicle rollback on slope Use flat, level surface away from traffic lanes; activate hazard lights and deploy reflective triangles; engage parking brake
2. Retrieve equipment from trunk Overexertion from lifting spare tire; back strain from awkward posture Use proper lifting technique (bend at knees, keep load close); request assistance if tire exceeds comfortable lift weight
3. Place wheel chocks Vehicle rollback; chocks displaced on loose gravel Place chocks firmly against both sides of the tire diagonal from the flat; verify chocks are seated on solid ground
4. Loosen lug nuts Wrench slippage causing hand/knuckle injury; vehicle shift Use correct size wrench; push rather than pull; wear work gloves; verify parking brake is set
5. Position jack and raise vehicle Jack failure; vehicle collapse; pinch points Use jack on designated lift point only; never place any body part under the vehicle while on jack alone; check jack condition before use

Your completed JHA should also include: the job title, the date of analysis, the names of the analyst and participating workers, required PPE, required training and a review/approval signature. Store JHAs in a centralized document management system where they can be easily accessed, updated and tracked.

JHA Examples by Industry

Construction: Scaffold Erection

Job steps typically include: inspecting scaffold components, assembling base plates on firm footing, erecting standards and ledgers, installing platform boards, securing guardrails and conducting a final inspection. Key hazards involve falls from height, falling objects striking workers below, caught-between hazards during assembly and structural collapse from improper bracing. Controls include fall protection (harness tied off above), exclusion zones below, competent person supervision and adherence to manufacturer specifications.

Manufacturing: Lockout/Tagout on a Conveyor Belt

This JHA covers the steps for isolating energy, verifying zero-energy state, performing maintenance and restoring the machine to service. Hazards include unexpected startup, stored energy release (hydraulic, pneumatic, capacitive), electrical shock and pinch points during reassembly. Controls follow the OSHA 1910.147 standard: individual locks and tags, try-start verification and a formal removal sequence.

Warehousing: Operating a Forklift in a Loading Dock

Steps include pre-operation inspection, approaching the dock, loading/unloading pallets and securing the dock area. Hazards range from pedestrian strikes and tip-overs to falls from the dock edge and trailer creep. Controls include operator certification, dock locks or wheel chocks on trailers, designated pedestrian pathways and load capacity adherence.

Common Mistakes to Avoid

Even experienced safety professionals make avoidable errors when conducting JHAs. Watch for these pitfalls:

How to Integrate JHAs Into Your Safety Program

A JHA is most powerful when it is connected to the rest of your safety management system, not sitting in isolation. Here is how to integrate it effectively:

Frequently Asked Questions About Job Hazard Analysis

What is the difference between a JHA and a JSA?

There is no functional difference. Job hazard analysis (JHA) and job safety analysis (JSA) refer to the same process. Some organizations and regulators prefer one term over the other, but the methodology - breaking a job into steps, identifying hazards and prescribing controls - is identical. The terms are used interchangeably across OSHA publications and international safety standards.

How often should a JHA be reviewed?

At a minimum, review each JHA annually. However, you should also review and update a JHA whenever: a process, equipment, or material changes; an incident or near miss occurs during the task; a worker identifies a new hazard; or regulatory requirements change. Treat the JHA as a living document, not a one-time exercise.

Who should be involved in conducting a JHA?

The analysis should involve the workers who actually perform the job, a supervisor familiar with the task and a safety professional or competent person who can ensure the analysis is thorough. Worker involvement is critical - they have firsthand knowledge of the hazards, shortcuts and difficulties that may not be visible to an observer.

Does OSHA require a JHA?

OSHA does not have a specific standard mandating JHAs by name. However, the General Duty Clause (Section 5(a)(1) of the OSH Act) requires employers to provide a workplace free from recognized hazards. Additionally, many specific OSHA standards - such as those for permit-required confined spaces (1910.146), process safety management (1910.119), and construction (29 CFR 1926) - require hazard assessments that are effectively JHAs. Conducting JHAs is considered an industry best practice and demonstrates due diligence.

Can JHAs be completed digitally?

Yes and they should be. Digital JHAs offer significant advantages over paper: they are easier to update, distribute and track. Workers can access them on mobile devices at the point of work. Supervisors can monitor completion rates in real time. And audit trails are automatic. Safety management platforms like Make Safety Easy allow you to create, assign and manage JHAs alongside your inspections, incident reports and training records - all in one place.

Take the Next Step

A job hazard analysis is only as effective as the system that supports it. If your JHAs are buried in filing cabinets or scattered across spreadsheets, they are not protecting anyone. Make Safety Easy gives you a centralized platform to create, manage and track JHAs alongside your inspections, documents and safety records - so every worker has instant access to the information they need to go home safe.

Request a free demo and see how easy it is to digitize your JHA program. Or view our pricing plans to find the right fit for your team.