. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/MEX/204 
25 October 2010 
 (10-5540) 
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 de Energía  (Ministry of Energy) 
Name and address (including telephone 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 different from above: 
Comité Consultivo Nacional de Normal ización en Materia de Hidrocarburos 
(National Advisory Committee on Standardization in the Field of Hydrocarbons) 
Avenida de los Insurgentes Sur número 890, piso 4 
Colonia Del Valle 
03100, México, D.F. Tel.: 5000 6000, Ext. 1130 Fax: 5000 6253 E-mail: csotelo@energia.gob.mx
, mmendoza@energia.gob.mx , 
 iposadas@energia.gob.mx , mahorta@energia.gob.mx  
Website: http://www.energia.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):   Liquefied petroleum gas 
(LPG) fuel systems. 
5. Title, number of pages and language(s) of the notified document:  
PROY-NOM-005-SESH/SCFI-2010, Equipos de ca rburación de Gas L.P. en motores de 
combustión interna.  Instalación y mantenimiento (Draft Mexican Official Standard 
PROY-NOM-005-SESH/SCFI-2010:  LPG fuel systems for internal combustion engines.  
Installation and maintenance) (19 pages, in Spanish) 
6. Description of content:   The notified draft Mexican Official Standard applies to 
vapour-phase LPG automotive systems operate d using a vaporizer and equipped with a 
mixer or injectors, and liquid-phase systems operated using a pump and injectors.  It establishes the conformity assessment procedures for these systems. G/TBT/N/MEX/204 
Page 2  
 
  7. Objective and rationale, including the na ture of urgent problems where applicable:  
To establish the minimum techni cal safety requirements, speci fications, test methods and 
maintenance requirements for the manufacture and installation of LPG regulators and/or 
vaporizer-regulators and other devices used in  LPG fuel systems in motor vehicles and 
stationary internal combustion engines. 
8. Relevant documents:  Diario Oficial de la Federación  (Official Journal) of 2 March 2010.  
Available at:  http://www.dof.gob.mx/  
9. Proposed date of adoption: 
 
Proposed date of entry into force:  Upon publication as a Mexican Official Standard in the Official Journal. 
60 calendar days after publication in the Official 
Journal. 
10. Final date for comments:  
11. Texts available from:  National enquiry  point [X] or address, telephone and fax 
numbers, e-mail and website addresses,  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 Website: http://www.economia-noms.gob.mx/?P=144
 
E-mail: normasomc@economia.gob.mx  and/or mailto:figueroa@economia.gob.mx  
 
Text available online at: http://members.wto.org/crnattach ments/2010/tbt/MEX/10_3983_00_s.pdf