Verra’s Updated Methodology for Improved Forest Management

A new standard for forest carbon projects arrives

Verra released VM0045 in 2022 to address a persistent problem in forest carbon markets. Traditional methods for calculating carbon credits from improved forest management often relied on static assumptions. They estimated what might happen over decades based on averages. Consequently, many projects struggled to demonstrate additionality with confidence.

VM0045 takes a different approach. The methodology uses dynamic matched baselines drawn from national forest inventories. Project plots are paired with control plots that share similar characteristics such as slope, soil productivity, and tree size. These matched pairs are monitored over time. The difference in carbon outcomes between them demonstrates the project’s actual impact.

This quasi-experimental design isolates project effects from external variables. Policy changes, pest outbreaks, and market shifts affect both project and control plots similarly. Therefore, the measured difference reflects genuine project activity rather than background trends. For businesses purchasing carbon credits, this provides a clearer picture of what they are funding.

The methodology applies to various improved forest management practices. Reduced logging intensity, extended harvest rotations, and fire management all qualify. Projects can combine multiple practices within the same area. They generate Verified Carbon Units for both greenhouse gas emission reductions and carbon dioxide removals.

Development timeline and regulatory milestones

Verra developed VM0045 in collaboration with the American Forest Foundation, The Nature Conservancy, and TerraCarbon. The partnership focused specifically on family and smallholder forest owners. These landowners manage approximately 40% of US forests but have historically faced barriers to carbon market participation.

Version 1.0 launched in 2022 under Sectoral Scope 14 for Agriculture, Forestry, and Other Land Use. Verra opened a public consultation period from 15 December 2023 to 15 January 2024. Stakeholder feedback led to refinements in version 1.1, which introduced the ability to differentiate VCUs for reductions versus removals. Projects registered under version 1.0 needed registry listing by 12 March 2024 and validation by 12 March 2025.

Version 1.2 became active on 10 July 2025. Projects operating under version 1.1 must complete validation and registration by 30 April 2026. The current version maintains the core dynamic baseline approach while refining monitoring protocols and labeling requirements.

In 2025, the Integrity Council for the Voluntary Carbon Market awarded VM0045 the Core Carbon Principles label. This made it the first improved forest management methodology designed for smallholders to receive CCP approval. The label signals to buyers that credits meet rigorous integrity standards for additionality, permanence, and robust quantification.

The Family Forest Carbon Program issued the first VM0045 credits in 2025. By early 2026, Verra had issued the first CCP-labeled credits under the methodology. As of August 2025, two projects were in validation with projected annual issuance of 258,000 credits. Related projects under similar protocols already covered roughly 500,000 acres across 18 sites.

How the methodology addresses previous criticisms

Earlier improved forest management protocols drew criticism for baseline assumptions. Many used regional averages to estimate what would have happened without the project. However, individual forests vary widely in growth rates, harvest pressure, and disturbance risk. Applying a single average baseline to diverse conditions often produced questionable additionality claims.

Static baselines also struggled to account for changing circumstances. Market conditions shift, regulations evolve, and climate impacts intensify over 40-year crediting periods. A baseline set in year one might become increasingly disconnected from reality by year ten. This created uncertainty about whether measured carbon benefits reflected project activity or simply favorable external conditions.

VM0045 addresses these concerns through continuous comparison. Control plots from national forest inventories provide an ongoing benchmark. If a policy change affects harvest rates regionally, both project and control plots experience similar effects. The methodology measures the difference between them rather than comparing the project to a fixed historical average.

National forest inventories offer another advantage: they represent actual forest conditions rather than modeled projections. The USDA Forest Service maintains permanent plots across the United States, remeasured every five to seven years. These plots include detailed measurements of tree species, size classes, growth rates, and mortality. VM0045 leverages this existing data infrastructure rather than requiring projects to generate entirely new baseline scenarios.

The matching process pairs project plots with control plots based on observable characteristics. Slope, site productivity index, and tree diameter distributions serve as matching criteria. This creates comparisons between genuinely similar forests, reducing the risk that differences stem from inherent site conditions rather than management practices.

Commercial implications for UK businesses buying carbon credits

UK businesses purchasing voluntary carbon credits face increasing scrutiny over quality. Regulators, investors, and civil society organizations question whether credits represent genuine climate benefits. Consequently, buyers need robust evidence that their carbon investments deliver measurable impact.

VM0045 provides several advantages for corporate buyers. The dynamic baseline approach offers transparent additionality. Companies can point to ongoing monitoring data showing how project forests diverge from matched controls. This evidence base helps defend carbon claims during audits or stakeholder challenges.

The CCP label adds independent validation. ICVCM assessment criteria include additionality, permanence risk management, and quantification accuracy. Credits carrying the CCP label have cleared these hurdles through third-party review. For procurement teams, this simplifies due diligence and reduces reputational risk.

However, UK buyers should understand the geographical specificity. VM0045 currently applies to United States forests using US national inventory data. Companies seeking to support UK woodland projects cannot use this methodology directly. Nevertheless, the approach demonstrates what rigorous forest carbon accounting looks like. UK buyers can apply similar scrutiny to domestic forest projects, asking whether they employ matched baselines or similar techniques to demonstrate additionality.

The methodology also creates opportunities in sustainable procurement. UK businesses with US operations or supply chains might fund VM0045 projects as part of Scope 3 reduction strategies. The focus on family forests aligns with social sustainability goals, supporting small landowners rather than large industrial operations.

Pricing remains a consideration. High-integrity credits typically command premium prices compared to credits from older methodologies. VM0045 credits, especially those with CCP labels, will likely trade above market averages. Companies should budget accordingly when planning carbon offset purchases. The premium reflects lower risk of credit reversal or public criticism.

Permanence provisions matter for long-term planning. Forest carbon projects face risks from fire, disease, and harvest decisions by future landowners. VM0045 includes buffer pool requirements to address these risks. Buyers receive fewer credits than the project generates initially, with the remainder held in reserve. If a project experiences carbon loss, buffer pool credits compensate affected buyers. This mechanism protects corporate investments but reduces the credit volume available per project.

Summary of key technical and commercial facts

• VM0045 uses dynamic matched baselines from national forest inventories, pairing project plots with similar control plots to demonstrate additionality through ongoing comparison rather than static projections.
• The methodology received the Core Carbon Principles label in 2025, becoming the first improved forest management approach for smallholder forests to achieve ICVCM approval.
• First credits were issued in 2025 under the Family Forest Carbon Program, with CCP-labeled credits following in early 2026; two projects in validation as of August 2025 project 258,000 credits annually.
• Version 1.2 became active on 10 July 2025, with projects under version 1.1 requiring validation and registration completion by 30 April 2026.
• The methodology applies to United States forests using USDA Forest Service inventory data, limiting direct application for UK-based woodland projects but establishing a benchmark for rigorous forest carbon accounting.
• Credits from VM0045 likely command premium pricing due to robust additionality evidence and CCP label status, requiring higher budget allocation compared to credits from older methodologies.

What this methodology means for carbon purchasing decisions

Companies building carbon portfolios should understand how VM0045 fits within broader market trends. Voluntary carbon markets have faced credibility challenges, particularly around forest projects. Investigative journalism and academic studies questioned whether many projects would have occurred anyway, casting doubt on additionality claims. This scrutiny has pushed prices down for older methodologies while creating demand for higher-integrity approaches.

VM0045 represents a market response to these concerns. The methodology’s approval process involved multiple stakeholder consultations and technical reviews. Verra’s partnership with the American Forest Foundation, The Nature Conservancy, and TerraCarbon brought together registry expertise, conservation science, and forest carbon measurement specialists. This collaborative development process aimed to anticipate criticism and build robust protocols from the start.

For procurement teams, the methodology offers clear documentation of impact. Each credit links to specific monitoring data showing carbon stock changes in project plots compared to matched controls. This traceability supports corporate sustainability reporting under frameworks like CDP and TCFD. Companies can demonstrate to stakeholders exactly what their carbon investment funded and what impact it achieved.

The focus on family forests also provides co-benefits beyond carbon. These projects keep working forests intact, maintaining habitat, water quality, and rural livelihoods. UK businesses with environmental, social, and governance commitments can point to these broader outcomes. However, buyers should verify co-benefits through project documentation rather than assuming they exist. Not all VM0045 projects will deliver identical social and ecological outcomes.

Risk management considerations extend beyond carbon permanence. Political and regulatory changes could affect project viability over multi-decade crediting periods. The US policy environment for forest carbon has varied across administrations. Projects must navigate federal, state, and local regulations that may shift over time. UK buyers should assess whether project developers have experience managing these complexities.

Supply considerations will evolve as more projects enter the pipeline. Currently, VM0045 credit availability remains limited relative to overall voluntary market demand. Companies requiring large volumes may need to pre-purchase credits through advance commitments. This approach locks in pricing but creates exposure if project validation delays occur. Buyers should negotiate clear terms around delivery timelines and recourse if credits are not issued as expected.

The methodology’s data requirements may limit participation by some landowners. Establishing matched baselines requires access to national inventory data and technical expertise to conduct the matching process. Smaller landowners may need aggregator support to participate. This could concentrate projects in regions with strong technical assistance infrastructure. Buyers seeking to support specific geographies should confirm project availability in their target areas.

Authoritative resources for further technical detail

Verra maintains the complete VM0045 methodology documentation on its website, including version history, stakeholder comment responses, and technical specifications for baseline matching and monitoring protocols.

The Integrity Council for the Voluntary Carbon Market provides assessment reports explaining how VM0045 meets Core Carbon Principles criteria, offering insight into the methodology’s additionality evidence, permanence provisions, and quantification approaches.

The American Forest Foundation publishes case studies and landowner resources related to the Family Forest Carbon Program, demonstrating practical application of VM0045 for smallholder participation.

For UK businesses seeking comparable approaches to domestic forest carbon projects, our net zero program provides guidance on evaluating carbon credit quality and integrating nature-based solutions into corporate climate strategies.

Companies building sustainable procurement frameworks that address Scope 3 emissions can access support through our sustainable procurement service, which covers supply chain carbon accounting and offset portfolio development.