The final Dairy Digester Emissions Matrix and Assumptions (November 30, 2018) was developed by the California Air Resources Board during the Dairy and Livestock Subgroup #2 collaborative process. This document outlines the net benefits of greenhouse gas and criteria pollutant emissions that could result from capturing and utilizing dairy biogas in one of five fuel pathway scenarios as compared to the reference scenario where the biogas is emitted into the atmosphere from an uncovered lagoon.