G/TBT/N/MEX/511  
13 May 2022 
(22-3756) 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 de la Secretaría de Economía , CCONNSE 
(National Advisory Committee on Standardization of the Ministry of the Economy)  
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:  
3. Notified under Article 2.9.2 [X], 2.10.1 [ ], 5.6.2 [X], 5.7.1 [ ], 3.2 [ ], 7.2 [ ], 
other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading . ICS numbers may be provided in addition, where applicable) : Systems 
for measuring and dispensing liquefied petroleum gas (LPG)  
5. Title, number of pages and language(s) of the notified document : PROYECTO de 
Norma Oficial Mexicana PROY -NOM-259-SE-2021, Sistemas para medición y despacho de 
Gas L.P., requisitos y especificaciones  (Draft Mexican Official Standard PROY -NOM-259-
SE-2021: Systems for measuring and dispensing LPG, requirements and specifica tions)  
6. Description of content : The notified draft Mexican Official Standard establishes the 
specifications and metrological and technical requirements applicable to systems for 
measuring and dispensing LPG in liquid state, regardless of their operating  principle, 
which are used in all commercial transactions carried out in tanker -trucks, and dedicated 
stations and multimodal stations in the national territory.  
The provisions established in this draft Mexican Official Standard are mandatory for 
systems f or measuring and dispensing LPG in liquid state that are manufactured, 
imported, marketed and used in the distribution and marketing of LPG within the United 
Mexican States.  
The verification and monitoring of this draft Mexican Official Standard shall be b inding on 
all LPG marketers and distributors in the national territory.  
7. Objective and rationale, including the nature of urgent problems where 
applicable : National security requirements ; Prevention of deceptive practices and 
consumer protection ; Protection of human health or safety  
8. Relevant documents:  
Those contained in chapter 2 . Normative references  G/TBT/N/MEX/511  
- 2 - 
  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 [ ] or address, telephone and fax 
numbers and email and website addresses, if available, of other body:  
Secretaría de Economía  (Ministry of the Economy)  
Dirección General de Normas (Directorate -General of Standards)  
Contact person : Tania Fosado  
Pachuca 189, C olonia Condesa,  
Demarcación territorial Cuauhtémoc,  
Ciudad de México, 06140  
Tel.: (+52 55) 5729 91 00, Ext. 13247 or 13264  
Email: tania.fosado@economia.gob.mx  
https://members.wto.org/crnattachments/2022/TBT/MEX/22_3419_00_s.pdf