This page last reviewed May 27, 2015

Compliance Offset Protocol Livestock Projects


The Compliance Offset Protocol Livestock Projects provides methods to quantify and report greenhouse gas (GHG) emission reductions associated with the installation of a biogas control system (BCS) for manure management on dairy cattle and swine farms.  The protocol focuses on quantifying the change in methane emissions, but also accounts for effects on carbon dioxide emissions.

Offset Project Operators or Authorized Project Designees that install manure biogas capture and destruction technologies must use the methods contained in this protocol to quantify and report GHGs.  The protocol provides eligibility rules, methods to quantify GHG reductions, offset project-monitoring instructions, and procedures for preparing Offset Project Data Reports.  Additionally, each offset project must submit to annual, independent verification by an ARB-accredited verification body.  Regulatory requirements for verification of Offset Project Data Reports are provided in the Cap and Trade Regulation.

This protocol is designed to ensure the complete, consistent, transparent, accurate, and conservative quantification of GHG emission reductions associated with a livestock digester project.  The protocol is composed of both quantification methodologies and regulatory program requirements to develop a livestock project for generating ARB offset credits.

ARB Compliance Offset Protocols

Livestock offset projects listed on or after January 1, 2015 must use the November 14, 2014 Compliance Offset Protocol and all associated documents.  A project listed under the 2011 protocol may continue to report under that protocol or may transition to the 2014 protocol.  A Project may transition only at the time of submitting the initial Offset Project Data Report to the Offset Project Registry (see section 95973(a)(2)(D)).

Frequently asked questions for Livestock projects

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For questions or comments regarding the Livestock Protocol, 

please contact Arnab Pal at (916) 323-6501 or via email at