Key Changes in the SBTi Corporate Net-Zero Standard V2

Key Changes in the SBTi Corporate Net-Zero Standard V2 DraftThe Science Based Targets initiative (SBTi) Corporate Net-Zero Standard (CNZS) is the globally recognized gold standard for corporate climate action. The release of the CNZS Version 2 (V2) consultation draft signals a major evolution in corporate decarbonization: one that prioritizes accountability, rigor, and the urgent need to drive real physical change.Version 2 builds on the foundation of the initial standard (V1.2/V1.3) but introduces significant revisions across all three scopes of emissions, formalizing new mechanisms that aim to accelerate action and ensure corporate claims are robust and verifiable.Here is a breakdown of the core differences you need to know:### Key Differences Between CNZS V2 Draft and V1| Feature | CNZS Version 1 (V1.2/V1.3) | CNZS Version 2 (Draft) || ----------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- || **Scope 1 & 2 Targets** | Targets could be **aggregated** for Scope 1 (direct) and Scope 2 (purchased energy) emissions. | **Requires separate, dedicated targets** for Scope 1 and Scope 2 to ensure action in both areas. || **Scope 1 Target Coverage** | Allowed exclusion of up to 5% of total Scope 1 and 2 emissions (when aggregated). | **Requires 100% coverage** of Scope 1 emissions. Introduces new options like **Asset Decarbonization Plans**. || **Scope 2 (Low-Carbon Electricity)** | Primarily relied on market based mechanisms (like unbundled Renewable Energy Certificates/GOs), which were criticized for lacking direct impact. | **Tightens integrity** by introducing stricter criteria, including a phased approach to require **geographic matching** and an eventual goal of **temporal (hourly) matching** for large electricity consumers. || **Scope 3 (Value Chain) Target Boundary** | Required a minimum percentage coverage of total Scope 3 emissions (e.g., ≥67% for near term targets). | Shifts to a focus on **"relevant"** sources (categories ≥5% of total Scope 3 emissions) and **emissions intensive activities** using an **impact based mapping** approach. Places greater emphasis on **Alignment Targets** (e.g., supplier engagement). || **Ongoing Emissions** | Addressed through **Beyond Value Chain Mitigation (BVCM)**, which was a voluntary recommendation (not formally recognized in the target setting pathway). | Formalizes a new framework called **Ongoing Emissions Responsibility (OER)**. It introduces two tiers of formal recognition (**Recognized** and **Leadership**) to incentivize companies to address ongoing emissions (i.e., those not yet abated) before the net zero year. || **Accountability & Monitoring** | Annual reporting on progress, but lacked a standardized, required method for progress assessment. Limited requirements for third party assurance. | Introduces a **cyclical validation model** and requires companies to use **defined formulas** for end of cycle performance assessment. Mandates **limited assurance** for the GHG inventory for Category A companies (large/medium in high income countries). || **Transition Plan** | Not a specific requirement within the target setting criteria. | **Requires companies to publish a transition plan** setting out the roadmap for achieving their targets. |---### The Shift in Focus: From Goal Setting to DeliveryThe updates in Version 2 signal a clear shift in the focus of the standard: moving beyond merely setting ambitious goals toward **embedding accountability, rigor, and specific, verifiable actions** into the corporate transition strategy.1. **Decarbonization Integrity:** The most notable change is the push for real world impact. By mandating the separation of Scope 1 and Scope 2 targets and introducing stricter rules for Scope 2 (such as geographic and temporal matching for electricity sourcing), V2 ensures that companies are actively driving tangible decarbonization in their energy use, rather than relying on contractual instruments alone.2. **Target Effectiveness:** For the value chain (Scope 3), the new standard moves away from arbitrary percentage coverage to an **impact based approach**. This allows companies to concentrate their efforts where they have the most influence and where the largest emission sources reside, ensuring that action is strategic and high leverage.3. **Mobilizing Climate Finance:** The introduction of the formal **Ongoing Emissions Responsibility (OER)** framework, which replaces the term BVCM, is designed to incentivize greater investment in climate solutions outside a company's own value chain. By introducing formal recognition tiers, the SBTi encourages companies to take financial responsibility for their ongoing emissions while they work toward their deep abatement goals.4. **Accountability:** The mandatory requirements for **transition plans** and **third party assurance** are designed to significantly increase transparency. The new cyclical validation system, which includes a mandatory end of cycle performance assessment, ensures continuous improvement and holds companies accountable for their targets over the entire duration of the commitment.The CNZS V2 is not just an update; it's a retooling of the net zero journey to ensure corporate ambition translates into credible, measurable action aligned with limiting global warming to 1.5°C. Companies should begin planning now to align with these new, more rigorous requirements.