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Book & Claim
Jun 12, 2026
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2 min read

SBTi Corporate Net-Zero Standard V2.0: what changed and why it matters

The Science Based Targets initiative (SBTi) has published Version 2.0 of its Corporate Net-Zero Standard. The update introduces mandatory emission reporting and target-setting obligations for larger companies, explicit requirements for transportation emissions, and a defined framework for the use of market instruments including Book & Claim. This article reflects shipzero's interpretation of the key changes as of now and does not constitute legal or compliance advice.

Key Takeaways

  • Scope 3.4 and 3.9 must be reported and targeted: if either Scope 3.4 or 3.9 individually exceeds 5% of total Scope 3, it must be reported and targeted. If both are below 5% individually but transportation as an activity in total exceeds 5%, reporting and target-setting are also required.
  • Reporting must cover well-to-wheel/wake: the Standard specifies this explicitly for transportation (C5.6.).
  • Only audited emission data is admissible: the GHG emission inventory itself must be audited (C8.6.), and companies using market instruments must additionally maintain auditable documentation and enable third-party audits (C25.4.).
  • Book & Claim is explicitly named: all market instruments are subject to a defined set of integrity criteria. Mass balance and Book & Claim are specifically named as permissible chains of custody for energy and commodity certificates.

Who is affected: Category A and the CSRD alignment

V2.0 distinguishes between Category A and Category B companies. Category A companies must fulfil all SBTi requirements; Category B companies may do so voluntarily. The threshold for Category A is explicitly aligned with CSRD reporting requirements.

Category A obligations include reporting emissions across all three scopes, setting near-term reduction targets within a five-year cycle from the base year, and committing to net-zero by 2050 at the latest. Net-zero goals are by default to be set at the highest parent company level, with the highest management accountable for achieving them (C1.1., C3.2.). Base years must reflect the most recent year with complete and comprehensive data (C4.1., C4.2.).

Transportation as an emission-intensive activity

Transportation – Scope 3.4 (upstream transportation and distribution) and Scope 3.9 (downstream transportation and distribution) – is classified as an emission-intensive activity. It requires quantification and reporting if it generates 5% or more of total Scope 3 emissions, even if that threshold is reached across both sub-categories combined (C6.3., Table A.1.). Target-setting is required where an individual sub-category meets the 5% threshold; where the threshold is only met in combination, target-setting is recommended but not required.

The Standard specifies that reporting for transportation must cover all emissions from well-to-wheel and well-to-wake (C5.6.). Market instruments such as Book & Claim are to be reported separately from the physical GHG inventory and must adhere to the defined integrity criteria (C5.4.).

Target setting for Scope 3.4 and 3.9

Scope 3 near-term targets must include all sub-categories that account for 5% or more of total Scope 3 (C14.1.). Non-excluded Scope 3 emissions must have targets consistent with a net-zero pathway (C15.1., C15.2.).

For Scope 3.4 and 3.9 specifically, three forms of near-term target are permitted (C15.3.):

Emission intensity: a specific emission intensity goal expressed as gCO₂e per tonne-kilometre (C15.3.a.).

Volume alignment: the share of procured transport activity that is lower carbon, for example Low Emission Transport Services (C15.3.b.).

• Supplier alignment: the share of contractors who are net-zero aligned or on a transition pathway (C15.3.c.).

It is recommended to set separate targets for transportation across Scope 3.4 and 3.9 combined should each individual scope not cross the threshold, as transportation is considered an emission-intensive activity  (R15.3.).

Scope 3.9 emissions where a company does not hold direct means – such as contracts – to influence those emissions may be excluded from near-term targets (C14.2.e.). Long-term goals must cover 100% of all Scope 3 emissions regardless of near-term exclusions and must be net-zero aligned (C16.1., C16.2.).

Target implementation: the three-level hierarchy

Actions to achieve emission reductions are to be taken in a defined order (C21.):

Activity level: where technically and commercially viable, actions should address specific activities first. Example from shipzero: a specific shuttle transport from a production site to a depot, where contractors on that lane may be incentivized to deploy battery-electric vehicles (C21.1.).

Activity pool level: where emissions arise in an activity pool such as a transport network and cannot be traced back to individual activities, actions may be taken at pool level. Mass balance and direct Book & Claim can serve as the chain of custody here. (C21.2.) Example from shipzero: HVO usage is often not traceable back to individual vehicles and may be accounted based on total consumption within the transport network.

Sector level: if actions cannot be taken at activity or pool level, sector-level actions become viable. Indirect Book & Claim can serve as the chain of custody here. (C21.3.) Example from shipzero: buying biofuel attributes on voluntary marketplaces finances an energy transition in the transportation sector at large.

Pool- or sector-level actions should complement and not substitute actions taken at activity level. Where actions are taken at pool level, the pool must be defined by geographical and/or operational boundaries (C22.1.).

Integrity criteria are in place to determine which market instruments are eligible for target achievement. Those criteria are largely aligned with constraints and requirements set by the MBM framework.

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Shipper emission data: Complex structures are holding back decarbonization effortsShipper emission data: Complex structures are holding back decarbonization efforts
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