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Program Overview

The Scope 3 Standard (S3S) Program certifies value chain interventions to support increased corporate climate action.

Verra’s Scope 3 Standard (S3S) Program will help companies address their Scope 3 supply chain emissions and targets through the following:

  • Robust rules and requirements for the implementation of value chain interventions and the issuance of corresponding units
  • Consistent and transparent accounting and measurement, reporting, and verification (MRV) procedures for value chain interventions using standardized and sector-specific GHG quantification methodologies
  • Assurance of GHG emission reductions and carbon dioxide removals via Verra’s accessible and robust third-party auditing and certification system
  • Transparently issuing and tracking Intervention Units (IUs) to intervention proponents and Scope 3 Intervention Units (S3IUs) to reporting companies through the publicly available Verra Registry
  • Facilitating co-investment in Scope 3 interventions based on third-party verification of a company’s right-to-report (R2R)

Why Tackle Value Chain Emissions?

Pressure from investors and regulation, environmental and business risks, and voluntary target-setting initiatives (e.g., Science Based Targets initiative, Voluntary Carbon Markets Integrity Initiative) are driving companies to abate their Scope 1, 2, and 3 emissions in line with what climate science deems necessary to limit global warming to 1.5oC above preindustrial levels.

Scope 3 value chain emissions often represent the majority of a company’s emissions abatement targets and are therefore critical to reduce. Scope 3 emissions are also known as a company’s indirect emissions, or value chain emissions. They are not produced by the company itself but arise from activities upstream and downstream in its value chain (e.g., from the upstream production and transportation of materials used in its production processes or the downstream use of its products).

While efforts to abate Scope 3 emissions are growing exponentially, several critical accounting and reporting challenges are preventing significant investment in Scope 3 interventions. Stakeholders are seeking greater assurance, transparency, and standardization in the accounting and reporting of value chain interventions, as well as the supporting infrastructure for tracking the corresponding units that represent the impact of these interventions.

Verra is developing the S3S Program to address these challenges and gaps, and to provide the level of rigorous accounting and reporting of value chain interventions that can help unlock immediate and large-scale investment in value chain climate action.


Support Us

Verra’s Scope 3 Standard Program will enable companies to take impactful and credible value-chain climate action. By offering a consistent approach to addressing value chain emissions (which often represent more than 75% of total corporate emissions) the program fills a critical market gap, helping companies scale up efforts to mitigate their carbon footprint.

Verra now invites sponsors to support the development of this program.

If you are interested in being a trailblazer and supporting the development of the Scope 3 Standard Program email the Scope 3 team.


How it Works

The S3S Program will leverage and adapt the knowledge, expertise, and infrastructure of Verra’s Verified Carbon Standard (VCS) Program, the world’s leading greenhouse gas crediting program. It will include a Scope 3 Standard, expert-assessed GHG quantification methodologies, a robust auditing and certification system, and a Scope 3 section on the Verra Registry.

The initial two versions of S3S Program will accomplish the following:

  • Version 1.0 of the S3S Program will enable intervention proponents to apply standardized GHG quantification methodologies to certify and issue IUs representing the GHG benefits of value chain interventions. Version 1.0 will also address the auditing, ownership, management, and tracking of IUs.
  • Version 2.0 of the S3S Program will issue S3IUs to reporting companies with a demonstrated right-to-report. A company’s right-to-report will be assessed based on a feasible value chain connection between a reporting company and the impacted product (e.g., commodity crop, textiles, concrete) in a value chain intervention.

See Recent Scope 3 News


Scope 3 Standard Program Development

The development of the S3S Program began in May 2022 with the launch of the  Scope 3 Initiative, which engaged over 100 stakeholders to explore how a Verra-led program could support increased climate action within corporate value chains. The Scope 3 Initiative yielded insights on the following topics:

  1. How companies are implementing, accounting for, and reporting on Scope 3 emissions abatement activities
  2. The key challenges and gaps companies face when accounting and reporting Scope 3 emissions abatement activities
  3. How a Verra-led program could support increased climate action within corporate value chains by addressing key challenges and gaps such as the following:
    • A lack of detailed, comprehensive, and verifiable accounting rules
    • A lack of transparent and standardized methods and limited use of primary data
    • The inability to track progress against Scope 3 targets
    • A lack of standardized and transparent assurance procedures

The Scope 3 Initiative found a significant demand for an S3S Program that addresses these gaps and enables companies to credibly account for and report value chain interventions. In December 2022, Verra’s board of directors approved the development of the S3S Program.

Below is an overview of the S3S Program development process and an estimated timeline for the development of version 1.0. The timeline for version 2.0 of the S3S Program will be published when available.

S3S Program Development Timeline and Milestones

  • Launched the S3S Program Development Group (see the Terms of Reference (PDF) for more information about the goals and objectives; see the Advisory Groups and Committees page for the list of members).
  • Drafted the S3S Standard and related program documents.
  • Worked with corporate partners from the agriculture, apparel, construction, and communication services sectors to pilot the following:
    • Adaptation of two VCS methodologies and one Clean Development Mechanism (CDM) methodology for S3S Program use
    • Implementation of draft program documents and real-world data

  • Launch initial public consultation on v0.1 of the S3S Program in March
  • Add a second tier of pilot projects to adapt and test additional methodologies
  • Create a sponsorship program
  • Launch version 0.9 of the S3S Program, which will include the following:
    • The possibility to pipeline interventions on the Verra Registry
    • A second public consultation on updated and additional S3S Program documents
  • Educate program users and validation/verification bodies (VVBs)

  • Launch version 1.0 of the S3S Program, which will enable the following:
    • Validation and registration of pipeline-listed interventions
    • Verification and issuance of Intervention Units (IUs) on the Verra Registry
  • Develop version 2.0, which will include the following:
    • Assurance framework to establish companies’ “right-to-report” (R2R) by demonstrating an established supply chain link to the impacted product in the intervention
    • The possibility to issue Scope 3 Intervention Units (S3IUs) on the Verra Registry

Get Involved

Stakeholder engagement is critical to ensuring the S3S Program is accessible and credible. Throughout the development phase, stakeholders are encouraged to engage by participating in public consultations during the program development process, which will be advertised via the News webpage on the Verra website, stakeholder newsletter, and social media channels. Once version 0.9 is live, stakeholders can also help us test functionality by pipeline-listing interventions using one of the available Scope 3-adapted VCS methodologies.

Sign up to receive Verra’s stakeholder newsletter and/or Scope 3 Standard Program updates (by checking the “Scope 3” box under “I am interested in…”).”

  • Send questions or comments to the Scope 3 Standard Program team.