. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/MEX/115 
1 May 2006 
 (06-2064) 
Committee on Technical Barriers to Trade Original:   Spanish 
  
 
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6. 
 
1. Member to Agreement notifying:   MEXICO
 
If applicable, name of local government involved (Articles 3.2 and 7.2):  
2. Agency responsible:   Secretaría del Medio Ambiente y Recursos Naturales , SEMARNAT 
(Ministry of the Environment and Natural Resources) 
Name and address (including telephone and fax numbers, e-mail and web-site 
addresses, if available) of  agency or authority designated to handle comments 
regarding the notification shall be  indicated if different from above: 
 
Comments received at:  Bulevar Adolfo Ruiz Cortines número 4209  Cuarto piso, ala B 
Fraccionamiento Jardines en la Montaña 
Delegación Tlalpan Código postal 14210, Distrito Federal  Fax: (+52) 55 56 28 06 32  E-mail: industria@semarnat.gob.mx  
or 
Puente de Tecamachalco #6 Piso 2 
Colonia Lomas de Tecamachalco Naucalpan de Juárez Estado de México México, C.P. 53950  
Fax: (+52) 55 55 20 97 15  
E-mail: normasomc@economia.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 provided in  addition, where applicable):   New diesel engines to be 
used for the propulsion of new motor vehicles of a gross vehicle weight exceeding 3,857 kg. 
and new units equipped with  this type of engine. G/TBT/N/MEX/115 
Page 2  
 
   
5. Title, number of pages and language(s) of the notified document:   PROYECTO de 
Norma Oficial Mexicana PROY-NOM-044- SEMARNAT-2006, que establece los límites 
máximos permisibles de emisión de hidroc arburos totales, hidr ocarburos no metano, 
monóxido de carbono, óxidos de nitrógeno, partículas y opac idad de humo provenientes del 
escape de motores nuevos que usan diesel como  combustible y que se utilizarán para la 
propulsión de vehículos automotores nuevos con peso bruto vehicular mayor de 3,857  kilogramos, así como para unidad es nuevas equipadas con este tipo de motores  
(Draft Mexican Official Standard PROY-NOM-044-SEMARNAT-2006 establishing the 
maximum permissible limits for emissi ons of total hydrocarbons, non-methane 
hydrocarbons, carbon monoxide, nitrogen oxide and particles and for smoke opacity from 
the exhaust pipes of new diesel engines to be used for the propulsion of new motor vehicles 
of a gross vehicle weight exceeding 3,857 kg., and new units equipped with this type of 
engine). 
6. Description of content:   This draft Mexican Official Standard will be binding upon the 
manufacturers, importers and assemblers of new di esel engines to be used for the propulsion 
of motor vehicles of a gross vehicle weight exceeding 3,857 kg. and of new units equipped 
with this type of engine. 
7. Objective and rationale, including the nature of urgent problems where applicable:  
 Protection of the environment and human health. 
8. Relevant documents:   Diario Oficial de la Federación (Official Journal)  of 26 April 2006. 
9. Proposed date of adoption: 
Proposed date of entry into force:  }To be established 
10. Final date for comments:   25 June 2006 
11. Texts available from:  National enquiry point [  X ] or address, telephone and fax 
numbers, e-mail and web-site addresses, if available of the other body:   
General Directorate of Standards: 
Tel.: (+52 55) 5729-9300, Ext. 43245 Fax: (+52 55) 5520-9715 Web: www.economia.gob.mx/?P=85
 (Standards catalogue) 
E-mail:  cidgn@economia.gob.mx