The Organic Waste Composting (OWC) Protocol provides a standardized approach for quantifying and monitoring the GHG reductions from projects that avoid methane emissions to the atmosphere through the diversion and composting of municipal food waste and food soiled paper waste that would otherwise have been sent to a landfill. This protocol builds largely on the Reserve’s protocol for organic waste digestion projects. This protocol was first adopted by the Reserve Board in June 2010.
- Organic Waste Composting Protocol Version 1.1 (July 29, 2013)
- Errata and Clarifications to Organic Waste Composting Protocol Version 1.1 (August 27, 2014)
- Organic Waste Composting Protocol Summary
- Effect of New Waste Diversion Mandates on Reserve Projects (Seattle, California) (January 14, 2015)
The OWC Protocol is not currently undergoing revision. For information about the stakeholder consultation on grocery store waste documentation, see the development section, Version 1.1, below.
Protocol Development & Previous Versions
Use the links below to access information about the protocol development process. Public comments, staff responses to public comments, workgroup participants, and other supporting documents can also be found here.
Click a version of the protocol below to access more information:
Please contact the Policy Team with questions or comments.