G/TBT/N/MEX/187/Add.6  
18 October 2013  
(13-5724)  Page: 1/2  
Committee on Technical Barriers to Trade  Original: Spanish  
 
  NOTIFICATION 
Addendum 
The following communication, dated 16 October 2013, is being circulated at the request of the 
delegation of Mexico. 
 
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 Amendment to Mexican Official Standard NOM-012-SESH-2010: "LPG-fired or natural gas-fired 
domestic room heaters. Safety requirements and test methods" 
On 14 October 2013, the Mexican Ministry of Energy published in the Official Journal ( Diario Oficial 
de la Federación ) (http://www.dof.gob.mx/ ) the amendment to Mexican Official Standard NOM-
012-SESH-2010 "LPG-fired or natural gas-fired domestic room heaters. Safety requirements and 
test methods", published on 2 October 2012. 
The Amendment to Mexican Official Standard NOM-012-SESH-2010 "LPG-fired or natural gas-fired 
domestic room heaters. Safety requirements and test methods" involves the following: CHANGES 
to sections 2; 3.6; 3.7; 3.8; 3.9; 3.32; 3.36; 3.37; 3.39; 3.40; 4.1; 4.2; 4.3; 4.4; 5.1; 5.2; 5.3; 5.4.2; 5.5; 5.6.1; 5.6.2; 5.6.3; 5.7; 5.10; 5.11.1; 5.11.2; 5.11.2.1; 5.11.2.2; 5.12.1; 5.12.4; 5.12.6; 5.17.1; 5.18 (Table 2); 5.19.7; 7; 7.1.1; 7.1.5; 7.2.3; 7.2.4.1; 7.2.5.1; 7.3.3; 7.3.4.1; 
7.3.4.2; 7.3.5.1; 7.3.5.2; 7.4.4; 7.5.4; 7.5.5; 7.6.2; 7.6.4; 7.6.5; 7.8.4; 7.9.5; 7.10.5; 7.11.4; 
7.11.5; 7.12.4; 7.12.5; 7.13.4; 7.14.4; 7.16.2; 7.16.3; 7.16.4; 7.17.2; 7.17.3; 7.18.3; 7.19.3; 7.20; 7.20.1; 7.20.2; 7.20.3; 9.2.3 and 9.4; th e ADDITION of sections 3.41; 3.42; 4 (final 
paragraph), 5.6.4, 5.6.5, 5.11.2 (final paragraph) ; 5.11.3; 5.19 (final paragraph); 5.19.1 (final 
paragraph); 5.19.8 (final paragraph); 5.20; 7 (Tab le 4); 7.3.4.3; 7.3.5.3; 7.11.4 (subparagraph 
(e)) and 13 (final paragraph); and the REPEAL of sections 3.39.1 to 3.39.15; 3.40.1 to 3.40.4; 5.5 
(subparagraph (d)); 5.7.1 to 5.7. 11; 5.10.1; 5.10.2; 5. 10.3; 7.6.2 (subpara graph (b)); 7.20.1.1; 
7.20.1.1.1 to 7.20.1.1.5; 7.20.1.2; 7.20.1.2.1 to 7.20.1.2.4; 7.20.1.2.4.1; 7.20.1.2.4.2; 7.20.1.2.5; 7.20.1.3; 7.20.1.3.1 to 7.20.1.3.6; 7.20.2.1; 7.20.2.1.1 to 7.20.2.1.6; 7.20.2.2; 7.20.2.2.1 to 7.20.2.2.6; 7.20.3.1 to 7.20.3.5 and 7.21 (all subparagraphs). 
The notified Amendment to Mexican Official Standard NOM-012-SESH-2010Safety will enter into 
force 60 calendar days after its publication in the Official Journal. 
Upon the entry into force of the notified Amendment to Mexican Official Standard NOM-012-SESH-
2010, the Clarification relating to this Standard will be withdrawn. 
The amendment to Mexican Official Standard NO M-012-SESH-2010 will not apply to LPG-fired or 
natural gas-fired domestic room heaters that were manufactured prior to its entry into force. Such 
appliances may therefore be marketed until stocks are exhausted with no requirements additional 
to those established by the regulations in force on the date of their manufacture.  
Any comments should be addressed to: 
Secretaría de Economía 
Subsecretaría de Competitividad y Normatividad Dirección General de Normas 
Tel.: (+52) 55 5729-9100, Ext. 43217 
Fax: (+52) 55 5520-9715 G/TBT/N/MEX/187/Add.6 
- 2 - 
  Website: http://www.economia.gob.mx/comuni dad-negocios/c ompetitividad-
normatividad/normalizacion/catalogo-mexicano-de-normas  
E-mail: normasomc@economia.gob.mx  and jesus.figueroa@economia.gob.mx  
Text available online at: http://www.dof.gob.mx/index.php?year=2013&month=10&day=14  
http://members.wto.org/crnattachments/2013/tbt/MEX/13_4123_00_s.pdf 
 
 
 
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