G/TBT/N/MEX/251  
16 January 2013  
(13-0270)  Page: 1/2  
Committee on Technical Barriers to Trade  Original: Spanish  
 
  NOTIFICATION 
The following notification is being circulated in accordance with Article 10.6. 
 
1. Notifying Member:  MEXICO 
If applicable, name of local governme nt involved (Articles 3.2 and 7.2):  
2. Agency responsible:  Secretaría de Medio Ambiente y Recursos Naturales  (Ministry of 
the Environment and Natural Resources) 
Name and address (including teleph one and fax numbers and e-mail and 
website addresses, if available) of  agency or authority designated to handle 
comments regarding the notification shall be indicated if di fferent from above:  
Comité Consultivo Nacional de Normalización de Medio Ambiente y Recursos Naturales  
(National Advisory Committee on Standardization for the Environment and Natural Resources) 
Blvr. Adolfo Ruiz Cortines número 4209, 5° piso, Ala "B" 
Fraccionamiento Jardines en la Montaña Delegación Tlalpan, México, D.F., código postal 14210 
E-mail: jose.wilson@semarnat.gob.mx  
Website: http://www.semarnat.gob.mx  
3. Notified under Article 2.9.2 [X], 2. 10.1 [ ], 5.6.2 [ ],  5.7.1 [ ], other:   
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provid ed in addition, where applicable):  Motor 
vehicles using gasoline, liquefied petroleum gas (LPG), natural gas or other alternative fuels (ICS 43.080). 
5. Title, number of pages and lang uage(s) of the notified document:  Proyecto de 
Modificación a la Norma Oficial Mexicana NOM-047-SEMARNAT-1999, "Que establece las 
características del equipo y el procedimiento de medición para la verificación de los 
límites de emisión de contaminantes, provenientes de los vehículos automotores en circulación que usan gasolina, gas licuado de petróleo, gas natural u otros combustibles 
alternos"  (Draft amendment to Mexican Official Standard NOM-047-SEMARNAT-1999 
"establishing the characteristics of the equipment and the measuring procedure used to verify levels of pollutant emissions from motor vehicles using gasoline, liquefied 
petroleum gas (LPG), natural gas or other alternative fuels") (27 pages, in Spanish). 
6. Description of content: The notified text establishes the characteristics of the 
equipment and the measuring procedure used to verify the maximum permissible levels 
of pollutant emissions from motor vehicles wi th engines fired by gasoline, LPG, natural 
gas or other alternative fuels. 
The text proposes the updating of measuring instrument characteristics; the integration 
of technological advances, such as the on-board diagnostic system and the 
dynamometer; technical specifications for routine calibration gases; the verification of equipment calibration; the inclusion of a conformity assessment procedure; and the inclusion of environmental compliance measures for foreign vehicles entering the 
country for definitive importation. These adjustments will benefit the environment by 
reducing and controlling air pollution, thus preventing the disruption of ecosystems and protecting human health.  G/TBT/N/MEX/251 
- 2 - 
  7. Objective and rationale, including the nature of urgent problems where 
applicable: To protect health and the environment. 
8. Relevant documents:  Norma Oficial Mexicana NOM-047-SEMARNAT-1999, "Que 
establece las características del equipo y el procedimiento de medición para la 
verificación de los límites de emisión de contaminantes, provenientes de los vehículos 
automotores en circulación que usan gasolina, gas licuado de petróleo, gas natural u otros combustibles alternos"  (Mexican Official Standard NOM-047-SEMARNAT-1999 
"establishing the characteristics of the equipment and the measuring procedure used to 
verify levels of pollutant emissions from motor vehicles in circulation using gasoline, liquefied petroleum gas (LPG), natural gas or other alternative fuels"), published in the 
Official Journal ( Diario Oficial de la Federación ) on 10 May 2000 
(http://www.dof.gob.mx/index.p hp?year=2000&month=05&day=10 ) 
9. Proposed date of adoption: 
Proposed date of entry into force:   Not applicable. 
60 calendar days after publication of the 
final Mexican Official Standard in the Official Journal.  
10. Final date for comments:  7 March 2013 
11. Texts available from: National enquiry point [X] or address, telephone and fax 
numbers and e-mail and website addresse s, if available, of other body: 
Secretaría de Economía 
Subsecretaría de Competitividad y Normatividad Dirección General de Normas 
Tel.: (+52) 55 5729 9100, Ext. 43217 
Fax: (+52) 55 5520 9715 E-mail: normasomc@economia.gob.mx  and/or jesus.figueroa@economia.gob.mx  
Website: http://www.economia.gob.mx/comunidad- negocios/normali zacion/catalogo-
mexicano-de-normas 
 
Text available online at: 
http://www.dof.gob.mx/index.p hp?year=2013&month=01&day=07 
http://members.wto.org/crnattachments/2013/tbt/MEX/13_0175_00_s.pdf