Scope 3 Category 1 GHG Assessment Guideline for Semiconductor Sector

This document is a guideline for assessing Scope 3 Category 1 greenhouse gas (GHG) emissions within the semiconductor sector, commissioned by SEMI and developed by Arthur D. Little. The guideline aims to establish a clear framework for companies to account for their Scope 3.1 emissions, addressing common challenges faced in this area. It emphasizes the importance of adhering to six GHG accounting principles, including relevance, completeness, and accuracy. The guideline outlines the necessity for companies to account for all upstream emissions from purchased goods and services, referencing the Kyoto Protocol and European regulations on fluorinated gases. It encourages a transition from spend-based methods to a hybrid approach for improved accuracy in emissions estimation. The document also highlights the need for transparency in methodology and the importance of engaging suppliers for more precise data collection. The intended audience includes member companies of the Semiconductor Climate Consortium and other organizations in the semiconductor industry seeking to enhance their carbon footprint assessments.