In biofuels: ethanol (C2H5OH) produced from feedstock and other biomass [Section 3(c), Biofuels Act of 2006; Section 3.1(d), DOE Department Circular No. DC2007-05-0006, Rules and Regulations Implementing Republic Act No. 9367; Section 3(b), 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 biofuels: ethanol (C2H5OH) produced from feedstock and other biomass that shall be technically proven and approved by the DOE for use in gasoline-fed engines, including hydrous ethanol, with quality specifications in accordance with the PNS, and for higher blends beyond the 10% blend, the DOE shall issue appropriate PNS [Section 4(f), DA, DAR, DOE, DENR, DOF, DOLE, DOST, DTI, DOTC, NBB, NCIP, PCA, SRA JAO No. 2008-1, s. 2008, Guidelines Governing the Biofuel Feedstocks Production, and Biofuels and Biofuel Blends Production, Distribution and Sale under Republic Act No. 9367]