![Implementing Guidelines for Issuance of PS Certification Mark License for Automotive LPG Converters](https://bps.dti.gov.ph/components/com_edocman/assets/images/icons/32x32/pdf.png)
Revised Implementing Guidelines for the Issuance of Philippine Standard (PS) Quality Certification Mark License for Automotive Liquefied Petroleum Gas (LPG) Converters covered by PNS 05:1993, The use of Liquefied Petroleum Gas (LPG) system in internal combustion engine - Code of practic