ACR Improved Forest Management Methodology Version 1.3 Earns Core Carbon Principle (CCP) Approval from the Integrity Council for the Voluntary Carbon Market (ICVCM)

ACR’s Improved Forest Management (IFM) on Non-Federal U.S. Forestlands methodology version 1.3 has earned Core Carbon Principles (CCP) approval from the Integrity Council for the Voluntary Carbon Market (ICVCM) in the latest round of methodology assessments. ACR IFM v1.3 credits eligible for the CCP Approved label include removals credits and emission reduction credits verified using ACR’s Tool for Dynamic Evaluation of Baselines. The CCP Approved label will soon be applied to more than 9 million eligible IFM v1.3 credits in the ACR Registry.

ACR’s Afforestation and Reforestation of Degraded Lands (ARR) methodology earned CCP approval in July 2025, and ACR’s IFM on Non-Federal U.S. Forestlands versions 2.1 and 2.0 earned CCP approval in August 2025 and February 2026, respectively. ACR’s IFM on Small Non-Industrial Private Forestlands v1.0, IFM on Canadian Forestlands, and Active Conservation and Sustainable Management on U.S. Forestlands v1.0 methodologies are still under assessment. We will continue to engage with ICVCM throughout their assessment process with the intent of securing CCP Approved labels across our portfolio of active methodologies.

ICVCM approved ACR at the program level as “Core Carbon Principles (CCP) Eligible” in April 2024. To become approved, ACR submitted an extensive application to ICVCM for assessment. We provided evidence of being a CORSIA Eligible Emissions Unit Program, in addition to meeting the CCP’s criteria around effective governance, credit tracking, transparency, and robust, independent third-party validation and verification.

Since its founding in 1996 as the world’s first private greenhouse gas registry, ACR has innovated and operationalized key elements of carbon credit quality assurance, including scientific peer-reviewed accounting methodologies and well-accepted approaches to address additionality, leakage, and reversal risk mitigation; oversight of independent third-party verification; and operation of a transparent registry for the issuance and tracking of serialized credits.

ACR’s approach to program quality has earned approval to issue credits for use in regulated carbon markets, including the State of California’s Cap-and-Trade Program, the International Civil Aviation Organization’s (ICAO) Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), the State of Washington’s Cap-and-Invest Program, and towards compliance with Singapore’s Carbon Pricing Act.

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