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ACR PROGRAM

ACR Methodologies

ACR methodologies are recognized as being of the highest quality, whether used for voluntary or regulatory compliance purposes.

Methodologies In Scientific Peer Review Open for Public Comment In Development Inactive

Methodologies

Methodologies must be validated and verified for compliance with an ACR-approved measurement, monitoring, reporting and verification (MRV) methodology and must comply with all requirements of the current published version of the ACR Standard.

ANAB Sectoral Scope Methodology Version
2. GHG emission reductions from industrial processes Advanced Refrigeration Systems 3.0
2. GHG emission reductions from industrial processes Certified Reclaimed HFC Refrigerants, Propellants, and Fire Suppressants 2.0
2. GHG emission reductions from industrial processes Destruction of Ozone Depleting Substances and High-GWP Foam 2.0
2. GHG emission reductions from industrial processes Destruction of Ozone Depleting Substances from International Sources 1.0
2. GHG emission reductions from industrial processes Plugging Orphaned Oil and Gas Wells 1.0
2. GHG emission reductions from industrial processes Transition to Advanced Formulation Blowing Agents in Foam Manufacturing and Use 3.0
3. Land Use, Land Use Change and Forestry Afforestation and Reforestation of Degraded Lands 1.2
3. Land Use, Land Use Change and Forestry Active Conservation and Sustainable Management on U.S. Forestlands 1.0
3. Land Use, Land Use Change and Forestry Avoided Conversion of Grasslands and Shrublands to Crop Production 2.0
3. Land Use, Land Use Change and Forestry Improved Forest Management (IFM) on Canadian Forestlands 1.0
3. Land Use, Land Use Change and Forestry Improved Forest Management (IFM) on Non-Federal U.S. Forestlands 2.1
3. Land Use, Land Use Change and Forestry Improved Forest Management (IFM) on Small Non-Industrial Private Forestlands 1.0
3. Land Use, Land Use Change and Forestry Restoration of California Deltaic and Coastal Wetlands 1.1
3. Land Use, Land Use Change and Forestry Restoration of Pocosin Wetlands 1.0
4. Carbon Capture and Storage Carbon Capture and Storage Projects 1.1
6. Waste Handling and Disposal Capturing and Destroying Methane from Coal and Trona Mines in North America 1.1
6. Waste Handling and Disposal Landfill Gas Destruction and Beneficial Use Projects 2.0

ACR Credits

ACR credits project-level emission reductions and/or removals from a range of scopes defined by the American National Standards Institute (ANSI), the body which accredits and oversees Validation and Verification Bodies for ACR. Scope exclusions are detailed in the ACR Standard.

All projects must be validated and verified for compliance with an ACR-approved measurement, monitoring, reporting and verification (MRV) methodology and must comply with all requirements of the current published version of the ACR Standard.

To ensure our methodologies are grounded in the latest science and the resulting credits are of the highest integrity, ACR’s process for the development and approval of methodologies is led by our highly qualified technical team with input from external stakeholders and subject matter experts. The process includes internal review by knowledgeable staff, a public stakeholder consultation period and a blind scientific peer review process by experts in the relevant field(s). Upon approval and publication, ACR methodologies are available for use to register projects on ACR.

ACR’s technical and policy team includes internationally recognized thought leaders in the forestry and industrial sectors and is widely recognized for its deep expertise in carbon accounting and verification methods.

New Methodologies

ACR promotes innovation to bring new emission reduction and removals credit types to market.

ACR promotes innovation to bring new emission reduction and removals credit types to market. Third parties are welcome to submit concepts for new methodologies for ACR’s evaluation. All new methodology concepts must be submitted using the process outlined in section 7.B. of the ACR Standard.

New methodologies and methodology modifications are approved for use through ACR's public comment and scientific peer review process and published for general use upon approval.