Specific Product Coverage	Philippine National Standard/s (PNS)	Enabling Law	Product Image
Liquefied petroleum gas (LPG) system in internal combustion engine	PNS 05:2019 Road vehicles – Code of practice for the use of liquefied petroleum gas (LPG) system in internal combustion engine	Department Administrative Order (DAO) No. 22-11, Series of 2022 The New Technical Regulation Concerning The Mandatory Certification of Liquefied Petroleum Gas (LPG) Pressure Vessels, Systems, Services and Ancilliary Products

          This specific product coverage with corresponding version of reference standards shall be mandatory beginning 24 July 2023 as stated in the transitory provision of the DAO 22-11:2022