ILFI Zero Energy & Phius Certifications: Charting the path for projects seeking a dual rating

Phius ZERO (previously PHIUS+ Source Zero) and the International Living Future Institute Zero Energy (ILFI) Zero Energy certifications have a lot in common. Phius and ILFI have produced a document that illustrates a considerable overlap, as well as how the two standards differ. Use the guide to determine if and how to pursue both certifications.