In biofuels: the process of evaluation and approval of DOI Biofuel Participant to be duly registered subject to the requirements under this Revised Circular [Section 3(a), Rule II, DOE Department Circular No. DC2021-06-0014, Revised Circular on Accreditation and Submission of Notices and Reports by Refiners, Importers and Own Users of Gasoline and Diesel Pursuant to the Biofuels Act]
In oil & gas, natural gas: the authorization granted by the DOE to a natural or juridical person as a Participant in the business of Natural Gas trade through a PDNGI Facility in the country [Section 4(a), DOE Department Circular No. DC 2025-04-0005, Philippine Natural Gas Industry Development Act IRR]