Does the standard include requirements on the calculation methodology of emission “footprints”?
The standard does not include requirements for emissions calculations methodologies at present. However, sellers of Certified Products that host a carbon calculator must make their inputs available to the public, including emission factors, assumptions, and methodologies used to calculate emissions from specific activities. They also must use internationally accepted numbers from government agencies such as the U.S. EPA, the United Nations Framework Convention on Climate Change, the World Resources Institute, the GHG Protocol Initiative, or similar initiatives.
