Every step of the task
with its hazard and its control.
The template to analyze a task before doing it: steps, hazards, risk level with the NOM-031 matrix and controls from the top down, with the clause of each Mexican standard that requires an analysis.
Free: it only asks for your name and your work email.
| Step | Hazard | F | S | Level |
|---|---|---|---|---|
| Lock out the conveyor | Unexpected start-up | C | IV | High |
| Change the belt | Sharp edges | D | II | Medium |
| Reinstall the guard and start | Someone in the zone | B | IV | Medium |
An Excel file with six sheets; the JSA sheet is duplicated for each task.
A header with the data that NOM-029 and NOM-033 require, the step table with hazard, consequence, risk level and control, emergencies and signatures.
Tables 2, 3 and 4 of NOM-031 to calculate the level, the hazard types and the five control levels with an example each.
The controls that go to the NOM-030 program, and the tracking of numbers, reviews and retention.
Who does the analysis, who signs, when it is reviewed and how long it is kept, standard by standard.
Sources: Federal Occupational Safety and Health Regulation (DOF 13-11-2014); NOM-033-STPS-2015, NOM-029-STPS-2011, NOM-009-STPS-2011, NOM-027-STPS-2008, NOM-031-STPS-2011, NOM-017-STPS-2024 and NOM-030-STPS-2009 in the Official Gazette (DOF), and the OSHA 3071 guide. Checked on October 21, 2026.
Duplicate the JSA sheet and fill in the exact location, the task, the job supervisor, the crew, the date and the standards that apply.
In the real order, with a verb and an object. Write them with the people who do the task: they know which step gets skipped.
Frequency from A to E and severity from I to IV: the risk level fills in by itself with the NOM-031 matrix.
Eliminate, substitute, engineering, administrative and, last, PPE. A severe risk is dealt with before starting.
The crew signs as acknowledgment, whoever the standard names approves it, and pending items go to the program. Review it when something changes and keep it for at least a year.
Download the JSA template (Excel)
It is a working guide: not an official form or legal advice, and each company is responsible for how it uses it.
The Fyware Safe PPE simulator has the worker choose their equipment among good, damaged and wrong-industry items, and put it on with their own hands before entering the area.
SIISA Consultores (site in Spanish and English), serving all of Mexico, carries out compliance assessments, the NOM-030 safety program and support during STPS inspections. It is a Fyware partner.
Not under that name: no Mexican standard uses the term «AST» (JSA) and there is no official form. What several standards require is analyzing risks before certain work: confined spaces (NOM-033 7.4), electrical maintenance (NOM-029 7.1), heights (NOM-009 5.1), welding and cutting (NOM-027 5.2) and construction (NOM-031 5.3). The JSA is one way to document it.
They are different documents. The JSA analyzes the steps, hazards and controls; the written authorization has its own content (NOM-009 7.2; NOM-033 8.6; NOM-027 10.6) and refers to the analysis. In confined spaces the authorization is valid for up to one shift (NOM-033 8.6 b).
A supervisor or the safety team coordinates it, and it is written with the crew. In confined spaces it is done by trained personnel and approved and signed by the employer or its representative and the person in charge of preventive services (NOM-033 5.2 and 7.8 b). In electrical maintenance, the plan is approved by the employer, the person in charge of preventive services or the job supervisor (NOM-029 7.3 b).
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