Zero Carbon Certification 1.0 Handbook
January 2026
January 2026
Table of Contents
Zero Carbon Certification 1.0 Handbook
January 2026
Zero Carbon Certification 1.0 Handbook — January 2026
January 2026
Zero Carbon Handbook
Overview
Clarifications
Embodied Carbon Clarifications
Embodied Carbon Calculation Clarifications
Embodied Carbon Reduction Clarifications
Embodied Carbon Offset Clarifications
Operational Carbon Clarifications
Energy Budget Clarifications
Energy Use Clarifications
Performance Period Clarifications
Renewable Energy Clarifications
Exceptions
Calculations
Documentation Requirements
Case Studies
Resources
Approved Regional Equivalencies
Asia
North America
Oceania
ILFI Program Glossary
A-G Terms
H-P Terms
Q-Z Terms
Summary of Changes
January 2026 Updates
Changes to Embodied Carbon (Q4 25)
April 2025 Updates
Changes to Overview (Q1 25)
Changes to Operational Carbon Clarifications (Q1 25)
Changes to Documentation Requirements (Q1 25)
Previous versions of the Handbook
Download as PDF
ILFI Program Glossary
Oceania
A-G Terms
