. /.   WORLD TRADE  
ORGANIZATION  G/TBT/N/MEX/200 
20 May 2010 
 (10-2837) 
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 para la Preservación y Uso Racional de 
los Recursos Energéticos  (National Advisory Committee on Standardization for the 
Conservation and Rational Use of Energy Resources) 
Río Lerma 302, 5° Piso, Colonia Cuauhtémoc 
Delegación Cuauhtémoc, 06500, México, D.F. E-mail: fernando.hernandez@conuee.gob. mx and norma.morales@conuee.gob.mx 
Website: http://www.sener.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):   Split type air 
conditioners (HS 8415) 
5. Title, number of pages and lang uage(s) of the notified document:  
PROY-NOM-023-ENER-2008, Eficiencia energ ética en acondicionadores de aire tipo 
dividido, descarga libre y sin conductos de aire.  Limites, métodos de prueba y etiquetado.  
(Draft Mexican Official Standard PROY-NOM -023-ENER-2008:  Energy efficiency in 
split type, free flow, ductless air conditioners.  Limits, test methods and labelling.) 
(21 pages, in Spanish).  
6. Description of content:   The notified draft Mexican Official Standard applies to split type, 
free flow, ductless air conditioners (known as mini-split and multi-split air conditioners), 
whether simple cycle (only cold) or reverse cycle (heat pump), with air-cooled condensers, 
powered by electricity, with nominal cooling capacities of 1W to 19,050W, which operate by mechanical compression. 
The Standard only applies to those systems ma rketed in Mexico which use one or various 
simple refrigeration circuits and which have an evaporator and a condenser.  G/TBT/N/MEX/200 
Page 2  
 
   The following devices are excluded from the scope of the Standard: 
(a) Water-source heat pumps; (b) units designed for use with additional ducting; (c) mobile units (not window type) with a condenser exhaust duct;  and 
(d) units with a frequency compresso r and/or variable coolant flow. 
7. Objective and rationale, including the nature of urgent problems where applicable:  
To establish the minimum energy efficiency ratio (EER) for split type, free flow, ductless air conditioners (known as mini-split and multi-split air conditioners), whether simple 
cycle (only cold) or reverse cycle (h eat pump), with air-cooled condensers. 
The Standard also specifies the test method to  be used for verifying compliance and defines 
the public information labelling requirements. 
8. Relevant documents:  Diario Oficial de la Federación  (Official Journal) of 13 May 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:   12 July 2010 
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_2161_00_s.pdf