Table of Contents - L.1801 (02/2026) - Guidelines for assessing the environmental impact of artificial intelligence systems

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations and acronyms
5	Conventions
6	Overview of AI system characteristics
	6.1	General
	6.2	AI system life cycle
	6.3	Classification of AI systems
7	General on LCA methodology
8	Framework for assessing the environmental impact of AI systems
	8.1	LCA for environmental impact from the AI system
	8.2	General description of comparative LCA for AI system footprint (first order effects)
	8.3	Evaluation of second- and higher-order effects coming from the use of AI
Appendix I – Other initiatives on environmental impact of AI
Appendix II – Examples of impacts from open-source development of AI systems
Appendix III – Example of LCI data for an AI system
Appendix IV – Analysis of the functional unit examples against the set criteria
Appendix V – Example of a consequence tree for a specific use of an AI system
Bibliography