Q1: Are freight emissions mandatory under CSRD?

Yes. Under CSRD and ESRS E1, companies must disclose Scope 3 emissions where the topic is material. For companies that ship goods, Categories 4 (upstream freight) and 9 (downstream freight) are almost always material — making logistics emissions a mandatory reporting obligation, not an optional disclosure.

Q2: What does ESRS E1 require for freight emissions data?

ESRS E1 requires that emissions data is credible, consistent, and methodologically defensible. For freight, that means a recognised methodology such as ISO 14083 or the GLEC Framework, documented calculation logic, data quality transparency, and a chain of custody that supports third-party assurance review.

Q3: What is the assurance trajectory for CSRD logistics reporting?

CSRD begins with mandatory limited assurance and moves toward reasonable assurance over time. Reasonable assurance requires that data can be traced to its source, the methodology is consistently applied, and records are immutable. Companies relying on spend-based estimates or unauditable spreadsheets will face increasing difficulty as the bar rises.

Q4: What is Scope 3 Category 4 in logistics?

Scope 3 Category 4 covers upstream transportation and distribution — goods moving from suppliers to the reporting company's facilities. For most industrial companies that purchase freight services, this is one of the largest and most material Scope 3 categories.

Q5: How does double materiality apply to freight emissions?

Double materiality under CSRD requires assessing both impact materiality (how your freight operations affect the climate) and financial materiality (how climate regulation and logistics costs affect your business). For companies that ship significant volumes, both directions are typically material.

Why freight emissions are now central to sustainability reporting

Freight sits inside Scope 3, and Scope 3 is now reportable

The Corporate Sustainability Reporting Directive (CSRD) entered into force in January 2023, making freight emissions sustainability reporting a mandatory requirement for large EU companies from financial year 2024 onwards, with SMEs following in subsequent phases. Under CSRD, companies must report in accordance with the European Sustainability Reporting Standards (ESRS).

ESRS E1, the climate change standard, requires disclosure of Scope 1, Scope 2, and Scope 3 greenhouse gas emissions. Scope 3 covers indirect emissions generated across a company's value chain, including both upstream and downstream logistics.

In practice, for most industrial and commercial companies, Categories 4 (upstream transportation and distribution) and 9 (downstream transportation and distribution) under Scope 3 are material, meaning they are significant enough to require disclosure under the ESRS Double Materiality assessment. If a company ships goods (by road, rail, sea, or air), those transport emissions are part of its mandatory reporting obligation.

In fact, this is a structural shift. Freight emissions are no longer an optional disclosure or a voluntary initiative. For CSRD-subject companies, they are required data.

What CSRD requires for freight emissions sustainability reporting

However, ESRS E1 does not simply require a number. In practice, it requires that the number be credible, consistent, and methodologically defensible.

Specifically, companies must demonstrate:

Completeness: all material emission sources within the boundary are included
Accuracy: data reflects actual transport activity, not rough estimates
Consistency: the same methodology is applied across reporting periods
Transparency: the calculation method is documented and auditable

Consequently, freight emissions data faces a higher bar than most Scope 3 categories. A Scope 3 Category 4 figure built on rough spend-based estimates or unadjusted averages may satisfy a checkbox, but it will not withstand assurance review.

Third-party assurance is mandatory under CSRD — starting with limited assurance and moving towards reasonable assurance. That trajectory means the quality bar for underlying data will rise year on year. Which is why companies that treat logistics emissions as a reporting formality are already behind.

How ESRS materiality assessment places freight in scope

Before a company reaches the calculation question, it must first determine whether logistics is a "material" sustainability topic requiring disclosure under ESRS.

The ESRS double materiality assessment asks two questions in sequence. First: does transport generate material climate impacts? Second: do climate risks or regulatory changes materially affect the company's business?

For most companies that ship or receive goods, the answer to both is yes. Indeed, early CSRD assessments most commonly flag upstream logistics (Category 4) and downstream logistics (Category 9) as material topics. That's because regulatory expectations make transport emissions financially relevant, not just environmentally significant.

As a result, once companies establish materiality, ESRS E1 requires them to disclose both their current emissions and their plans to reduce them. That disclosure must be auditable. The implication is that "auditable" will increasingly mean verifiable at source — not just plausible in aggregate.

Why freight emissions sustainability reporting data is fragmented

The practical challenge for most companies is that freight data lives across multiple systems, carriers, and geographies. For instance, a single product delivery might involve a subcontracted logistics provider and multiple transport modes with different emission profiles. Warehouse handoffs and consolidation hubs add further complexity.

Moreover, each actor in that chain may calculate emissions differently, or not at all.

The consequence is a fragmented, inconsistent picture. This is where the reporting gap becomes structural: a sustainability manager trying to compile CSRD-compliant transport data typically faces:

Missing primary data from carriers who have not invested in emissions tracking
Inconsistent methodologies: different carriers using different calculation bases, emission factors, or allocation rules
No audit trail: calculations exist in spreadsheets or PDF reports, with no way to trace a figure back to source activity data

Put differently, freight emissions sustainability reporting is not a data volume problem. It is a methodology and traceability problem. Common gaps include using uncorrected distance estimates instead of ISO 14083 mode-specific values, reporting only tank-to-wheel emissions while omitting the upstream well-to-tank component, and applying incorrect allocation logic to co-loaded shipments. A forthcoming post will examine each of these in detail.

Why standards create the solution path

That's where ISO 14083 comes in. Published in 2023 as the international standard for quantification and reporting of greenhouse gas emissions from transport chain operations, it addresses this challenge directly.

Specifically, it specifies which emission sources to include — Tank-to-Wheel and Well-to-Wheel options. It also defines allocation rules across shipments (mass, volume, and TEU-based), the required operational data inputs, and handling of multi-modal transport chains.

The GLEC Framework has a longer history. First published by Smart Freight Centre in 2016, it established the multimodal emissions accounting methodology that directly fed into the ISO 14083 development process — Smart Freight Centre contributed substantively to the ISO working group. ISO 14083 codified that methodology into an international standard. The GLEC Framework continues as its operational companion: it provides what the standard defines but does not supply — emission factor databases, mode-specific default datasets, and practical implementation guidance for every transport mode and vehicle type.

Together, ISO 14083 and the GLEC Framework create a common language. When a carrier calculates emissions using this methodology and a shipper receives that data, both parties are working from the same rules. That consistency is what makes the data externally usable — in CSRD reports, in assurance reviews, and increasingly in customer sustainability declarations. In other words, the standard solves the interoperability problem that fragmented supply chain data creates.

The practical implication for logistics providers

However, that dynamic runs in both directions. Logistics operators face the mirror-image challenge: their clients — manufacturers, retailers, importers — are under increasing pressure to report Scope 3 transport data with methodology documentation.

That pressure flows directly to carriers. Providing emissions data on request is rapidly becoming a commercial requirement. As a result, clients who need auditable data for CSRD reporting will actively prefer carriers who can produce ISO 14083-compliant, shipment-level records. Which is why investment in proper emissions calculation is increasingly a commercial decision, not just a compliance one.

This creates a competitive incentive to invest in proper emissions calculation — not as a sustainability initiative, but as a commercial capability.

Where CO2Path fits

CO2Path builds on ISO 14083 and the GLEC Framework. It supports freight emissions sustainability reporting at the shipment level, applying the correct allocation methodology for each transport mode. Companies can use the outputs directly in CSRD Scope 3 disclosures.

Every calculation is blockchain-secured, creating an immutable audit trail from the underlying activity data to the reported figure. That traceability is what assurance teams will increasingly require as CSRD moves from limited to reasonable assurance.

New to the terminology? The CO2Path knowledge base covers ISO 14083, GLEC, Scope 3 and more — free, no signup required.

See how CO2Path generates CSRD-ready freight emissions outputs → Request a demo