IAGRAM OF HEALTH AND SAFETY LEGISLATION
 

 
   All labor and health and Safety Standards are legally based on Article 123 A of the Mexican Constitution

 What is the difference between a Law, a Regulation, a NOM and an NMX?

 
Word ARTICLE 123A of the Political Constitution of the United Mexican States - Labor, Health and Safety is based on Article 123a of the Constitution.

Last reform published in the Official Daily of the Federation February 24 of 2017 – See the Transitional Articles for its implementation (page 17) Text before the reform is in red
   
Word

  LAW OF ALIMENTARY ASSISTANCE FOR WORKERS – published in the DOF Jan. 17, 2011

   
Word  REGULATION of the Law of Alimentary Assistance for Workers  published in the DOF June 4, 2015
   
   
 

(related to Health and Safety)

 
   
Word  REGULATION FOR OCCUPATIONAL HEALTH AND SAFETY  was published in the DOF on November 13, 2014 and took effect in February 2015.  
   
Word GENERAL REGULATION OF LABOR INSPECTION AND APPLICATION OF SANCTIONS published in the DOF June 17, 2014 – effective September 17, 2014. Reform published August 23, 2022
   
 

 

 
A NOM (= Norma Oficial Mexicana = Official Mexican Standard) have the force of Law. They are created by the DGN (= Direcciσn General de Normas) which is under the authority of the Secretary of Economy (Secretarνa de Economνa = formerly known as SECOFI) The DGN creates National Consultative Committees integrated by experts, both government and private sector who create NOMs or Standards based on the Laws, and Regulations. The NOMs provide you with the details of compliance, procedures, programs, permits. Each NOM has a designation based on the Secretary responsible for oversight of compliance.  Example: NOM-005-STPS-1998 is a Health and Safety standard. All Health and Safety Standards have a different number but the same "STPS" designation.

EXAMPLE:

NOM-005-STPS-1998

NOM = Norma Oficial Mexicana = Official Mexican Standard

005 = the number of this NOM

STPS = Secretarνa de Trabajo y Previsiσn Social Secretary of Labor and Social Welfare

1998 = The year this NOM was published in the DOF

   
  The STPS requires employers to organize their health and safety documentation by NOM. When an audit will take place, the STPS will notify a company that they will be audited the next day for specific NOMs or all Health and Safety NOMs.
 

HEALTH AND SAFETY –

 HEALTH AND SAFETY IS UNDER FEDERAL JURISDICTION AND THE FOLLOWING DOCUMENTS ARE IN EFFECT IN MEXICO – THERE ARE NO STATE HEALTH AND SAFETY STANDARDS

THE FEDERAL REGULATION OF OCCUPATIONAL HEALTH AND SAFETY  (REGLAMENTO FEDERAL DE SEGURIDAD Y SALUD EN EL TRABAJO)  Published in the DOF on November 13, 2014 – effective February 13, 2015 –

All Health and Safety Standards (NOMs) are based on the Federal Regulation of Occupational Health and Safety
W AGREEMENT establishing simplification actions for procedures carried out before the Federal Center for Conciliation and Labor Registration. Published in the DOF on August 19, 2026
 
W AGREEMENT establishing simplification actions for procedures carried out before the Secretary of Labor and Social Welfare. Published in the DOF on August 31, 2026

 
W NOM-001-STPS-2008, Buildings, locales, installations and areas in the workplace – Safety conditions. .     
 Published in the DOF on Nov. 24, 2008 – effective Jan. 26, 2009 - modification of art. 7.1.3 Sept. 18, 2016
   
W NOM-002-STPS-2010, Safety conditions – Fire prevention and protection in the workplace. Published in the DOF December 9, 2010 –
   
W NOM-003-STPS-1999   Agricultural activities – Use of phitosanitary materials or pesticides and materials of vegetable nutrition or fertilizers – Safety and Health Conditions.
   
W

NOM-003-SEGOB-2011, Signs and warnings for civil protection. Colors, shapes and symbols to be used.   Published in the DOF Dec. 23, 2011 - Reformed July 2015 NAME CHANGE TO NOM-003-SSPC-2011, Signs and warnings for civil protection. Colors, shapes and symbols to be used NAME CHANGE FROM NOM-003-SEGOB-2011 TO NOM-003-SSPC-2011
   
W NOM-003-STPS-2023, AGRICULTURAL ACTIVITIES – OCCUPATIONAL HEALTH AND SAFETY CONDITIONS  Published in the DOF on Jan. 25, 2024 – effective Jan. 25, 2025
   
W NOM-004-STPS-1999   Protection Systems and Safety Devices for Machinery and Equipment used in the Workplaces.
 The Objective of this NOM is to establish the safety conditions, protection systems and devices for preventing accidents and protecting the workers from accidents on the job caused by the operation and maintenance of machinery and equipment. 
   
W NOM-005-STPS-1998  Health and Safety Conditions in the Work Place for the Handling, Transport, and Storage of Hazardous Chemical Substances.
The objective of this NOM is to establish Health and Safety conditions for the handling, transport and storage of hazardous chemical substances, for preventing accidents and protecting the health of the workers and avoiding damage to the work place. MODIFICATION NOV. 2015
   
W NOM-006-STPS-2014, Handling and storage of materials – Occupational Health and Safety conditions.   Published in the DOF Sept. 11, 2014 – Took effect April 11, 2015, modified Sept 18, 2017, Dec. 18, 2017, modified Dec. 22, 2017

 

 
 

W

NOM-006-STPS-2023, Storage and handling of materials through the use of machinery – Occupational Safety conditions.

Published in the DOF on March 7, 2024 – effective Sept 3, 2024.

 
W NOM-007-STPS-2000  Agricultural activities –Installations, machinery, equipment, and tools – Safety conditions
The objective of this NOM is to establish the safety conditions which the installations, machinery, equipment and tools utilized in agricultural activities must consist of in order to prevent risks to the workers.
   
W

NOM-008-STPS-2013,  Forest timber harvesting activities and in warehouse and processing centers in their primary activity - Occupational health and safety conditions.   Published in the DOF on October 31, 2013 – effective date October 31, 2015.

   
W NOM-009-STPS-2011, Safety conditions for working at heights.  Published in the DOF May 6, 2011 – effective Aug. 6, 2011
   
W

NOM-010-STPS-2014, Contaminating chemical agents in the work environment – Inspection, evaluation and control.  Published in the DOF April 28, 2014 – takes effect April 28, 2016

 
   
W NOM-011-STPS-2001  Health and Safety Conditions in the Work Place where NOISE is generated.   To establish the health and safety conditions in the workplaces where noise is generated that by its characteristics, levels, and time of action, is capable of altering the health of workers; the maximum permissible levels, and the maximum permissible exposure times per work shift, their correlation and the implementation of a program of conservation of hearing.
   
W

NOM-012-STPS-2012, Health and Safety conditions in the workplaces where sources of ionizing radiation are handled.  Published in the DOF on Oct. 31, 2012 – Effective date March 1, 2013.
   
W NOM-013-STPS-1993   Relative to the health and safety conditions in the workplaces where non-ionizing electromagnetic radiations are generated.
Establishes the preventive and control measures in the workplaces where non-ionizing electromagnetic radiations are generated for preventing the risks to the health of the workers that involve the exposure to said radiations.
   
W NOM-014-STPS-2000,    Occupational exposure to abnormal environmental pressures – Health and safety conditions. UPDATED 2024
   
W NOM-015-STPS-2001   December 14, 2002   Elevated or lowered thermal conditions – Health and Safety Conditions
 To establish the Health and Safety Conditions, the maximum permissible exposure times and levels to extreme thermal conditions, that by their characteristics, type of activities, level, time, and frequency of exposure are capable of altering the health of workers.
   
W NOM-016-STPS-2001   NOM-016-STPS-2001, Operation and maintenance of railroads – Safety and Health conditions.
This standard has the objective of establishing safety and health measures for preventing accidents and occupational illnesses in those activities that are performed for operating and giving maintenance to the means of transport related to railroad service.
   
W NOM-017-STPS-2008, Personal protective equipment – Selection, use and handling in the work place.
Published December 9, 2008 took effect February 2009
     
W NOM-017-STPS-2024, Personal protective equipment – Selection, use and handling in the work place.  Published in the DOF on March 28, 2025 – takes effect September 25, 2025
     
  PDF NMX-S-055-SCFI-2002, SAFETY – PERSONAL PROTECTIVE EQUIPMENT - INDUSTRIAL SAFETY HELMETS
– CLASIFICATION, SPECIFICATIONS AND TEST METHODS
     
  PDF NMX-S-057-SCFI-2002 SAFETY - PERSONAL PROTECTIVE EQUIPMENT - PRIMARY OCULAR PROTECTORS
AGAINST IMPACTS - REQUIREMENTS AND TEST METHODS
     
   
W

NOM-018-STPS-2015, Harmonized System for the identification and communication of hazards and risks from hazardous chemical substances in the workplace.   Published October 9, 2015, clarification published November 11, 2015 – takes effect on October 9, 2018
   
W NOM-019-STPS-2011, Constitution, integration, organization and operation of the Commissions of Health and Safety Published in the DOF on April 13, 2011
   
W NOM-020-STPS-2011 Containers subject to pressure, cryogenic containers and generators of steam or boilers – Operation – Safety Conditions Published in the Official Daily of the Federation Dec. 27, 2011  - effective June 27, 2012.
   
   
W NOM-021-STPS-1993  Requirements for Reporting of Accidents in the Workplace. CANCELLED AND REPLACED WITH
 

System for the Reporting Work Accidents

AGREEMENT by which is created the System for the Reporting Work Accidents and the forms for informing of accidents and deaths of workers are made known.  

This is a new online system for the reporting of work accidents. The legal representative of each business must enroll online with their electronic signature (FIEL). (the legal representative of each business in Mexico must go to SAT and be fingerprinted and photographed for an electronic signature that consists of 2 files that a person stores on their computer.  For all government procedures, a permit, paying taxes, etc you must do everything online and upload the 2 files that are your electronic signature and it has the legal effect of a handwritten signature.  We have had the FIEL for about 5 years now.)

The system is online at http://siaat.stps.gob.mx
   
W NOM-022-STPS-2015, Static electricity in workplaces – Safety Conditions. Published in the DOF April 1, 2016 –in effect October 1, 2016
   
W

NOM-023-STPS-2012, Underground mines and open air mines – Occupational Health and Safety conditions.  Published in the DOF Oct. 11, 2012 – effective Oct. 11, 2013
   
W NOM-024-STPS-2001, Vibrations – Health and Safety Conditions in the Workplace. Published in the DOF on January 11, 2002
   
W  NOM-025-STPS-2008, Conditions of illumination in the workplace.        Published in the DOF on Dec. 30, 2008– effective March 02, 2009
   
W NOM-026-STPS-2008, Health and Safety Colors and signs, and identification of risks from fluids conducted in pipes.   Published in the DOF on Nov. 25, 2008 – effective Jan. 25, 2009
   
W NOM-027-STPS-2008, Welding and cutting.  (welding, cutting, confined spaces)      PUBLISHED NOV. 6, 2008  -  effective Jan. 7, 2009 MODIFICATION NOV. 2015
   
W

NOM-028-STPS-2012, System for the administration of work – Safety in the critical processes and equipment that handle hazardous chemical substances. Published in the DOF Sept. 6, 2012 – effective date June 6, 2014

   
W

NOM-029-STPS-2011, Maintenance of electrical installations in the workplace – Safety Conditions. Published in the Official Daily of the Federation Dec. 29, 2011 – effective date March 29, 2012
   
W

NOM-030-STPS-2009, Preventive services of occupational health and safety – Functions and activities. Published in the DOF December 22, 2009 

   
W NOM-031-STPS-2011, Construction – Health and Safety conditions in the workplace. Published in the DOF el 4 de Mayo de 2011 – effective October 4, 2011.
   
W NOM-033-STPS-2015, Safety conditions for performing tasks in confined spaces.  Published in the DOF on Aug. 31, 2015 – effective November 30, 2015
   
W

NOM-034-STPS-2016, Safety conditions for access and the carrying out of activities of workers with disability in the workplace. Published in the DOF on July 20, 2016 – Effective Sept. 18, 2016
   
W NOM-035-STPS-2018, Occupational psychosocial risk factors – Identification, analysis and prevention (Published in the DOF October 23, 2018 and takes full effect October 23, 2019)
   
W

NOM-036-1-STPS-2018, Occupational ergonomic risk factors -Identification, analysis, prevention and control. Part 1: Manual load handling.   Published in the DOF on November 23, 2018 – effective date January 4, 2020   IMPORTANT MODIFICATION PUBLISHED SEPT 23, 2022  UPDATED
   
W NOM-037-STPS-2023, Telework – Occupational health and safety conditions   Published in the DOF on June 8, 2023 - Effective December 7, 2023
   
W

NOM-038-STPS-2024, Classification of agricultural, forestry, sawing, silvicultural, hunting and fishing activities, which allows employers to identify those with the lowest risk, and that do not involve the use of chemicals, management of machinery and heavy vehicles for minors. Published in the DOF on August 15, 2024 – effective date is February 11, 2025
   
W NOM-100-STPS-1994,   Safety – Pressure Contained Dry Chemical Powder Fire Extinguishers – Specifications
   
W NOM-101-STPS-1994,   Safety – chemical foam based extinguishers.
   
W NOM-102-STPS-1994,   Safety – Carbon Dioxide Based Extinguishers- Part 1: Containers
   
W NOM-103-STPS-1994,   Safety – pressurized water based fire extinguishers
(January 11, 1996)
   
W NOM-104-STPS-2001   Extinguishing Agents – Ammonium Monophosphate Based Dry Chemical Powder, Type ABC
   
W NOM-106-STPS-1994,  Safety – Extinguishing Agents – Type BC sodium bicarbonate based dry chemical powder.
   
W

NOM-113-STPS-2009, Safety – Personal Protective equipment – Protective Footwear – Classification, specifications and testing methods.    Published in the DOF December 22, 2009 – Modification published in the DOF December 24, 2010

   
W

NOM-115-STPS-2009, Safety- Personal protective equipment – Protective helmets – Classification, specifications and testing methods.   Published in the DOF December 22, 2009 – Effective December 22, 2010 – Modification published in the DOF December 24, 2010 – Articles 10.1.1 and 10.1.2 take effect after January 1, 2012. Modification published June 7, 2013
   
W

NOM-116-STPS-2009, Safety – Personal protective equipment – Anti-noxious particulate negative pressure air purifying respirators – Specifications and testing methods.  Published in the DOF December 22, 2009 – Effective date Dec. 22, 2010 – Modification published in the DOF December 24, 2010 – effective Dec. 24, 2010 – (The certification referred to in 8.11 and 8.12  took effect January 1, 2012) Modification published 24-03-2017 – took effect 25-03-2017