G/TBT/N/MEX/461  
16 December  2019 
(19-8680) 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 : Secretaría de Salud  (Ministry of Health)  
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:  
José Alonso Novelo Baeza, Chair of the Comité Consultivo Nacional de Normalización de 
Regulación y Fomento Sanitario  (National Advisory Committee on Standardization for the 
Regulation and Promotion of Health) ; Address : Oklahoma número 14, planta baja, colonia 
Nápoles,  Alcaldía Benito Juárez, Código Postal 03810, Ciudad de México ; Tel.: 50805200, 
Ext. 1333 ; Email: rfs@cofepris.gob.mx  
3. Notified under Article 2.9.2 [X], 2.10.1 [ ], 5.6.2 [X], 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 for 
human consumption  
5. Title, number of pages and language(s) of the notified document : PROYECTO de 
Norma  Oficial Mexicana PROY -NOM-127-SSA1 -2017, Agua para uso y consumo humano . 
Límites permisibles de la calidad del agua  (Draft Mexican Official Standard PROY -NOM-
127-SSA1 -2017, Water for human use and consumption . Permissible limits for water 
quality) (148 pages, in Spanish)  
6. Description of content : A quality water supply for human use and consumption is 
essential for preventing the transmission of water -related diseases . It requires 
establishing and updating the permissible limits for the physical, chemical, microbiological 
and radioactive properties of water, with a view to ensuring and preserving the quality of 
the water provided to consumers by public and private water supply systems.  
In light of the above, the Ministry of Health proposes issuing the present  Mexican Official 
Standard in order to effectively monitor the sanitation of water undergoing  purification 
treatments to make it suitable for human use and consumption, according to current 
needs.  
The notified Standard establishes the permissibl e limits for quality to be met by water for 
human use and consumption.  
It is binding throughout Mexico on the bodies responsible for public and private water 
supply systems.  G/TBT/N/MEX/461  
- 2 - 
  7. Objective and rationale, including the nature of urgent problems where 
applicable : The notified Standard establishes the permissible limits for quality to be met 
by water for human use and consumption . It is binding throughout Mexico on the bodies 
responsible for public and private water supply systems . It does not apply to t reated 
waste water . Protection of human health and safety  
8. Relevant documents:  
• Mexican Official Standard NOM -008-SCFI-2002, Sistema General de Unidades de 
Medida.  
• Mexican Official Standard NOM -117-SSA1 -1994, Bienes y servicios . Método de 
prueba para la determinación de cadmio, arsénico, plomo, estaño, cobre, fierro, 
zinc y mercurio en alimentos, agua potable y agua purificada por espectrometría 
de absorción atómica.  
• Mexican Official Standard NOM -201-SSA1 -2015, Productos y servicios . Agua y 
hielo para consumo humano, envasados y a granel . Especificaciones sanitarias.  
• Mexican Official Standard NOM -210-SSA1 -2014, Productos y servicios . Métodos 
de prueba microbiológicos . Determinación de microorganismos indicadores . 
Determinación de microorganismos patógen os. 
9. Proposed date of adoption : To be determined  
Proposed date of entry into force : To be determined . It may enter in force 360 
calendar days after publication in the Official Journal.  
10. Final date for comments : 4 February 2 020 
11. Texts available from : National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if a vailable, of other body:  
Secretaría de Economía  (Ministry of the Economy)  
Dirección General de Normas  (Directorate -General of Standards)  
Tel.: (+52) 55 5729 9100, Ext. 43244  
Fax: (+52) 55 5520 9715  
Website: http://www.economia.gob.mx/comunidad -negocios/normalizacion/catalogo -
mexicano -de-normas  
Email: cesar.o rozco@economia.gob.mx  tania.fosado@economia.gob.mx  
jose.ramosr@economia.gob.mx  
http://www.dof.gob.mx/nota_detalle.php?codigo=5581179&fecha=06/12/2019  
https://members .wto.org/crnattachments/2019/TBT/MEX/19_7226_00_s.pdf