DTI PNS/UN ECEC 115:2006 ICS 43:140, August 17, 2009
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF: I. SPECIFIC LPG (LIQUEFIED PETROLEUM GASES) RETROFIT SYSTEMS TO BE INSTALLED IN MOTOR VEHICLES FOR THE USE OF LPG IN THEIR PROPULS…
National Administrative Register August 17, 2009
Text Available at Office of the National Administrative Register, U. P. Law Complex, Diliman, Quezon City