Guide
JSA vs JHA: what's the difference?
Short answer: none. A job safety analysis (JSA) and a job hazard analysis (JHA) are two names for the same thing: one task broken into its steps, with the hazards of each step and how to control them. What differs is the name a company, contract or general contractor uses. A pre-task plan and a toolbox talk are different documents, compared below.
Where the two names come from
OSHA's booklet on the method is called Job Hazard Analysis (OSHA 3071). It defines a JHA as “a technique that focuses on job tasks as a way to identify hazards before they occur,” looking at the relationship between the worker, the task, the tools and the work environment. The same booklet uses the other name too: “when conducting your own job safety analysis, be sure to consult the Occupational Safety and Health Administration standards for your industry.”
In practice, some companies say JHA and others say JSA, and the form is the same: task, steps, hazards, controls, protective equipment and the crew's signatures. If a general contractor asks for a JSA, a JHA with the right content will usually do, but giving them the name they asked for saves a conversation.
JHA / JSA vs pre-task plan vs toolbox talk
| JHA / JSA | Pre-task plan | Toolbox talk | |
|---|---|---|---|
| What it covers | One task: its steps, the hazards of each step, and the controls | One crew's work for one day: today's tasks, hazards, controls and checks | One safety topic, like ladders or trench safety |
| When it's done | Before the task is first done; reused each time the crew does it | At the start of each shift, and again when the work or conditions change | Daily or weekly, before work |
| Who does it | A supervisor or competent person, with the workers who do the task | The foreman or crew lead, with the crew | The foreman or safety lead, read to the crew |
| How long it lasts | Until the task changes, an incident shows it needs updating, or a periodic review | One day | One meeting |
| Record | The form plus the crew's signatures | The day's form plus the crew's signatures | A sign-in sheet with the date, topic and attendees |
How they fit together on a job
- The JHA / JSA plans a task. Written once for, say, “set trusses with a crane”, and reviewed with the crew before they start. OSHA's booklet says to review it periodically, after an injury or illness on that job, and to train everyone affected whenever it changes.
- The pre-task plan checks today. Each morning the crew lists the day's tasks, checks the hazards and conditions they face that day, and confirms permits, inspections and emergency details. OSHA's recommended practices for construction suggest daily planning meetings, huddles, toolbox talks or tailgate meetings to engage workers.
- The toolbox talk teaches one topic. A few minutes on a hazard the crew faces, read to everyone and recorded on a sign-in sheet. The same OSHA guide suggests weekly or daily toolbox talks.
Free templates
- JHA template (Word and PDF, English and Spanish)
- JSA template: the same form under the JSA name
- Pre-task plan form for the start of each shift
- Free toolbox talks and a sign-in sheet
- JHA / JSA examples for common construction tasks
Questions
Is a JSA the same as a JHA?
Yes. Both break one task into steps, list the hazards of each step and the controls for each hazard. OSHA's booklet on the method is called Job Hazard Analysis and also refers to it as a job safety analysis. Use the name your contract asks for.
Is a THA the same thing?
Usually. Task hazard analysis (THA) is another name some companies use for the same step, hazard and control method. Check what the contract or site rules ask the form to include.
Does OSHA require a JHA, a JSA or a pre-task plan?
Federal OSHA's construction rules don't require a document by any of these names. They require employers to instruct each employee in recognizing and avoiding unsafe conditions (29 CFR 1926.21(b)(2)) and to have competent persons inspect job sites, materials and equipment frequently and regularly (29 CFR 1926.20(b)(2)). These documents are how many contractors plan and record that, and general contractors often require them in their contracts and site rules.
Do I need both a JSA and a pre-task plan?
If your general contractor asks for both, yes. Otherwise it depends on the work: a JSA suits a task the crew repeats, and a pre-task plan suits sites where the work and conditions change day to day.
Sources: OSHA 3071, Job Hazard Analysis; OSHA 3886, Recommended Practices for Safety and Health Programs in Construction; 29 CFR 1926.20; 29 CFR 1926.21.