. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/MEX/196 
25 March 2010 
 (10-1632) 
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, 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 Normalizac ión de Gas Natural y de Gas Licuado de 
Petróleo por Medio de Ductos  (National Advisory Committee on Standardization for 
Piped Natural Gas and Liquefied Petroleum Gas) 
Horacio 1750, Colonia Polanco 
Delegación Miguel Hidalgo Código postal 11510, México, Distrito Federal Website:  http://www.conuee.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 applicab le, otherwise national tariff heading.  
ICS numbers may be provided in  addition, where applicable):   Natural gas 
5. Title, number of pages and language(s) of the notified document:   
NOM-001-SECRE-2010, Especificaciones del gas natural (cancela y sustituye a la 
NOM-001-SECRE-2003, Calidad del gas nat ural y la NOM-EM-002-SECRE-2009, 
Calidad del gas natural durante el periodo de emergencia severa)  (Mexican Official 
Standard NOM-001-SECRE-2010:  Specificati ons for natural gas (annuls and replaces 
NOM-001-SECRE-2003:  Natural gas quality, and NOM-EM-002-SECRE-2009:  Natural gas quality in times of serious emergency) (19 pages, in Spanish) 
6. Description of content:   The notified Mexican Official Standard applies to natural gas 
delivered at transport, storage and distribution system injection points and at custody 
transfer points where ownership is transferred to other licence holders or end users. 
It does not apply to natural gas flowing fro m wells and processing complexes, liquefied 
natural gas transported by tanker vessel to li quefied natural gas storage terminals, or to 
liquefied natural gas and natural gas handled at  such terminals prior to injection into the 
transport system. G/TBT/N/MEX/196 
Page 2  
 
  7. Objective and rationale, including the nature of urgent problems where applicable:  
To establish the specifications to be met by natural gas passing through natural gas 
transport, storage and distribution systems with a view to ensuring the safety of human beings, the environment and the installations of licence holders and users. 
8. Relevant documents: 
• Diario Oficial de la Federación  (Official Journal) of 19 March 2010.   Available 
at:  http://www.dof.gob.mx  
• ISO-13686-1998:  "Natural gas.  Quality d esignation" (chapters on definitions and 
specifications for natural gas) 
9. Proposed date of adoption: 
Proposed date of entry into force:  }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 the 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 figueroa@economia.gob.mx 
Also available at:  
http://members.wto.org/crnattach ments/2010/tbt/mex/10_1234_00_s.pdf