effect and the effect that insufficient ventilation could result in a fatal accident,  as well as an indication of precautions for use that will be necessary for  ensuring safe use."  (Effective Date)  Article 1 This Ministerial Order comes into effect as of May 19, 2010.  (Transitional Measures)  Supplementary Provisions [Order of the Ministry of Economy, Trade and  Industry No. 24 of May 12, 2010]  Supplementary Provisions [Order of the Ministry of Economy, Trade and  Industry No. 60 of December 1, 2010]  Article 4 (1) In the case of manufacturing or importing unvented type stoves  with an airtight oil tank, a Notifying Enterprise may choose not to apply the  provisions of 11 (1) in the "Technical Requirements" column of the "9. Oil  Stoves" row in Appended Table 1 of the New Ministerial Order for nine months  from the day of enforcement of this Ministerial Order.  (2) With regard to the application of the provisions of 12 (3) in the "Technical  Requirements" column of the "9. Oil Stoves" row in Appended Table 1 of the  New Ministerial Order to unvented type stoves with an airtight oil tank, for  nine months from the day of enforcement of this Ministerial Order, the phrase  "an indication of precautions for use that will be necessary for ensuring safe  use" in 12 (3) of the same column is deemed to be replaced with "if the stove  has a Fire-extinguishing Device to Be Used at the Time of Oil Supply, an  indication of such effect, and if it has no Fire-extinguishing Device to Be Used  at the Time of Oil Supply, an indication of such effectand the effectthat a  failure to extinguish a fire at the time of oil supply could result in a fire  outbreak, as well as an indication of precautions for use that will be necessary  for ensuring safe use."  Article 2 In the case of manufacturing or importing pressure cookers for home  use or riding helmets, a Notifying Enterprise may, until six months have  elapsed from the day of enforcement of this Ministerial Order, choose to apply  the provisions prior to the revision with regard to the application of the  provisions of the "3. Pressure Cookers for Home Use" row and the "4. Riding  Helmets" row in Appended Table 1 of the Ministerial Order on Technical  Requirements for Specified Products Related to the Ministry of Economy,  Trade and Industry after the revision by this Ministerial Order.  26 