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NOM-044-SEMARNAT-2017, That establishes the maximum permissible limits of emissions of carbon monoxide, nitrogen oxides, non-methane hydrocarbons, non-methane hydrocarbons plus nitrogen oxides, particulates and ammonium, originating from the exhaust of new motors that use diesel as fuel and that will be utilized for the propulsion of automotive vehicles, with gross vehicular weight greater than 3,857 kilograms, as well as the exhaust of automotive vehicles with gross vehicular weight greater than 3,857 kilograms equipped with this type of motors.  

Published in the DOF on February 19, 2018 – modification published in the Official Daily of the Federation on November 12, 2020.

SEMARNAT INDEX

 

NORMA OFICIAL MEXICANA NOM-044-SEMARNAT-2017, QUE ESTABLECE LOS LÍMITES  MÁXIMOS PERMISIBLES DE EMISIÓN DE MONÓXIDO DE CARBONO, ÓXIDOS DE NITRÓGENO, HIDROCARBUROS NO METANO, HIDROCARBUROS NO METANO MÁS ÓXIDOS DE NITRÓGENO, PARTÍCULAS Y AMONIACO, PROVENIENTES DEL ESCAPE DE MOTORES NUEVOS QUE UTILIZAN DIÉSEL COMO COMBUSTIBLE Y QUE SE UTILIZARÁN PARA LA PROPULSIÓN DE VEHÍCULOS AUTOMOTORES CON PESO BRUTO VEHICULAR MAYOR A 3,857 KILOGRAMOS, ASÍ COMO DEL ESCAPE DE VEHÍCULOS AUTOMOTORES NUEVOS CON PESO BRUTO VEHICULAR MAYOR A 3,857 KILOGRAMOS EQUIPADOS CON ESTE TIPO DE MOTORES

OFFICIAL MEXICAN STANDARD NOM-044-SEMARNAT-2017, THAT ESTABLISHES THE MAXIMUM PERMISSIBLE LIMITS OF EMISSIONS OF CARBON MONOXIDE, NITROGEN OXIDES, NON-METHANE HYDROCARBONS, NON-METHANE HYDROCARBONS PLUS NITROGEN OXIDES, PARTICULATES AND AMMONIUM, ORIGINATING FROM THE EXHAUST OF NEW MOTORS THAT USE DIESEL AS FUEL AND THAT WILL BE UTILIZED FOR THE PROPULSION OF AUTOMOTIVE VEHICLES, WITH GROSS VEHICULAR WEIGHT GREATER THAN 3,857 KILOGRAMS, AS WELL AS THE EXHAUST OF AUTOMOTIVE VEHICLES WITH GROSS VEHICULAR WEIGHT GREATER THAN 3,857 KILOGRAMS EQUIPPED WITH THIS TYPE OF MOTORS.   

 

ÍNDICE

INDEX

1.  OBJETIVO Y CAMPO DE APLICACIÓN.

1.               OBJECTIVE AND FIELD OF APPLICATION.

2.  REFERENCIAS NORMATIVAS.

2.               NORMATIVE REFERENCES.

3.  TÉRMINOS Y DEFINICIONES.

3.               TERMS AND DEFINITIONS.

4.  ESPECIFICACIONES.

4.               SPECIFICATIONS.

5.  PROCEDIMIENTO PARA LA EVALUACIÓN DE LA CONFORMIDAD.

5.               PROCEDURE FOR THE EVALUATION OF CONFORMITY.

6.  CONCORDANCIA CON NORMAS INTERNACIONALES.

6               CONCORDANCE WITH INTERNATIONAL STANDARDS.

7.  BIBLIOGRAFÍA.

7               BIBLIOGRAPHY.

8.  VIGILANCIA.

8               OVERSIGHT.

9.  SANCIONES.

9.               SANCTIONS

TRANSITORIOS

TRANSITIONAL ARTICLES

APÉNDICE A. NORMATIVO -      Características técnicas del Sistema de Diagnóstico a Bordo (SDB/OBD).

APPENDIX A. MANDATORY -               Technical characteristics of the On-Board Diagnostic System (SDB/OBD).

APÉNDICE B. NORMATIVO -      Características técnicas para el Sistema de Control de NOx.

APPENDIX B. MANDATORY -               Technical characteristics for the NOx Control System.

APÉNDICE C. NORMATIVO -      Especificaciones técnicas de la familia de motor o de los vehículos automotores nuevos y su sistema de post-tratamiento.

APPENDIX C. MANDATORY -               Technical specifications of the engine family or new automotive vehicles and their post-treatment system.

APÉNDICE D. INFORMATIVO -   Tabla de equivalencias en gramos por milla de los estándares 3A y 3B.

APPENDIX D. INFORMATIVE -               Table of equivalences in grams per mile of standards 3A and 3B.

1.         OBJETIVO Y CAMPO DE APLICACIÓN

1.   OBJECTIVE AND FIELD OF APPLICATION

Esta Norma Oficial Mexicana establece los límites máximos permisibles de emisiones de monóxido de carbono, óxidos de nitrógeno (NOx), hidrocarburos no metano (HCNM), hidrocarburos no metano más óxidos de nitrógeno (HCNM + NOx), partículas (Part), e incluso de amoniaco (NH3), conforme a lo especificado en las Tablas 1, 2, 3 y 4 de la presente norma oficial mexicana; todos ellos, contaminantes provenientes del escape de motores nuevos que utilizan diésel como combustible y que se utilizarán para la propulsión de vehículos automotores con peso bruto vehicular mayor a 3,857 kilogramos, así como del escape de vehículos automotores nuevos con peso bruto vehicular mayor a 3,857 kilogramos equipados con este tipo de motores.

This Official Mexican Standard establishes the maximum permissible limits of emissions of carbon monoxide, nitrogen oxides (NOx), non-methane hydrocarbons (HCNM), non-methane hydrocarbons plus nitrogen oxides (HCNM + NOx), particles (Part), and even of ammonia (NH3), as specified in Tables 1, 2, 3 and 4 of this Official Mexican Standard; all of them, pollutants from the exhaust of new engines that use diesel as fuel and that will be used for the propulsion of automotive vehicles with gross vehicle weight greater than 3,857 kilograms, as well as the escape of new automotive vehicles with gross vehicle weight greater than 3,857 kilograms equipped with this type of engines.

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