G/TBT/N/MEX/488  
13 January  2021 
(21-0431) 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 government involved (Articles 3.2 and 7.2):  
2. Agency responsible : Comité Consultivo Nacional de Normalización para la 
Preservación y Uso Racional de los Recursos Energéticos , CCNNPURRE (National 
Advisory Committee on Standardization for the Conservation and Rational Use of Energy 
Resources)  
Name and address (including telephone  and fax numbers, email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:  
Av. Revolución No. 1877, Colonia Loreto, Alcaldía Álvaro Obregón,  
Ciudad de México, C.P. 01090, Email:  
norma.morales@conuee.gob.mx  and antonio.garrido@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 applicable, otherwise national tariff 
heading . ICS numbers may be provided in addition, where applicable) : Water 
heaters for domestic and comm ercial use  
5. Title, number of pages and language(s) of the notified document : PROYECTO de 
Norma Oficial Mexicana PROY -NOM-003-ENER -2020, Eficiencia térmica de calentadores 
de agua para uso doméstico y comercial . Límites, métodos de prueba y etiquetado  (Draft 
Mexican Official Standard PROY -NOM-003-ENER -2020: Thermal efficiency of water 
heaters for domestic and commercial use . Limits, test methods and labelling) (44 pages, 
in Spanish)  
6. Description of content : The notified draft Mexican Offic ial Standard establishes the 
minimum thermal efficiency levels that are to be met by water heaters for domestic and 
commercial use, and the test methods to be used to verify compliance, and defines the 
relevant user information labelling requirements, and the conformity assessment 
procedure for these products.  
It applies to liquefied petroleum gas - or natural gas -fired water heaters for domestic and 
commercial use which supply only hot water in liquid state, and which are imported, 
manufactured or marketed in the United Mexican States . It does not apply to water 
heaters with a thermal load greater than 108.0 kW and absolute maximum working 
pressures of 600 kPa at water temperatures higher than 360.15 K (87.0°C), which are 
considered as boilers, or to parts, components or spare parts of liquefied petroleum gas - 
or natural gas -fired water heaters for domestic and commercial use covered by the 
Standard.  
7. Objective and rationale, including the nature of urgent problems where 
applicable : Consumer information, l abelling  G/TBT/N/MEX/488  
- 2 - 
  8. Relevant documents:  
• NOM-008-SCFI-2002, Sistema General de Unidades de Medida . 
9. Proposed date of adoption : To be determined  
Proposed date of entry into force : To be determined  
10. Final date for comments : 60 days from notification  
11. Texts available from : National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available, of other body:  
Please send your comments to: norma.morales@conuee.gob.mx  y 
antonio.garrido@conuee.gob.mx  
cc: cesar.orozco@economia.gob.mx ; tania.fosado@economia.gob.mx  
 
Secretaría de Economía  (Ministry of the Economy)  
Dirección General de Normas (Directorate -General of Standards)  
Calle Pachuca número 189, pisos 7 y 12, Colonia Condesa, Demarcación Territorial 
Cuauhtémoc, Código Postal 06140, Ciudad de México, Mexico  
Tel.: (+52) 55 5729 9100, Ext. 13217/13264,  
Email:  
César Osvaldo Orozco Arce: cesar.orozco@economia.gob.mx  
Tania Daniela Fosado Soriano: tania.fosado@economia.gob.mx  
https://www.dof.gob.mx/nota_detalle.php?codigo=5609676&fecha=11/01/2021  
https://members.wto.org/crnattachments/2021/TBT/MEX/21_0391_00_s.pdf