  
  
G/TBT/N/MEX/404/Add.1  
26 October  2020 
(20-7384) Page: 1/1 
Committee on Technical Barriers to Trade  Original:  Spanish  
 
  
NOTIFICATION  
Addendum  
The following communication, dated 2 6 October 2 020, is being circulated at the request of the 
delegation of Mexico . 
 
_______________  
 
 
Title: Proyecto de Norma Oficial Mexicana PROY -NOM-179-SSA1 -2017, Agua para uso y  consumo 
humano . Control de la calidad del agua distribuida por los sistemas de abastecimiento de agua (Draft 
Mexican Official Standard PROY -NOM-179-SSA1 -2017, Water for human use and consumption . 
Monitoring the quality of water supplied through the water supply systems)  
 
Reason for Addendum:  
[ ] Comment period changed - date:  
[ ] Notified measure adopted - date:  
[X] Notified measure published - date: 22 October 2 020 
[X] Notified measure enters into force - date: 22 October 2 021 
[X] Text of final measure available from1: 
https://www.dof.gob.mx/nota_detalle.php?codigo=5603318&fecha=22/10/2020  
https://members.wto.org/crnattachments/2020/TBT/MEX/final_measure/20_6444_00
_s.pdf  
[ ] Notified measure withdrawn or revoked - date:  
Relevant symbol if measur e re-notified:  
[ ] Content or scope of notified measure changed  
New deadline for comments (if applicable):  
[ ] Interpretive guidance issued and text available from1: 
[ ] Other:  
 
Description : Mexico hereby notifies the publication of Mexican Official Standard NOM -179-SSA1 -
2020, Water for human use and consumption . Monitoring the quality of water supplied through the 
water supply systems.  
__________  
 
1 This information can be provided by including a website address, a pdf attachment, or other 
information on where the text of the final measure/interpretative guidance can be obtained.  