SPIB is accredited by the American Lumber Standard Committee as an Auditing Agency for the Pellet Fuels Institute's (PFI) Densified Fuel Standards Program. The SPIB Pellet program operates to provide consistent Quality Control practices and reliable Third-Party Auditing Services to ensure adherence to those requirements listed in the PFI's Residential/Commercial QA/QC Handbook. Manufacturers, specifiers or customers interested in this program should contact SPIB for further inquiries or information specific to their pellet fuel needs.