Analyst Insight: Scope 3 transportation emissions remain among the most difficult to measure accurately. However, advances in data aggregation and tracking methodologies are enabling more precise insights. Now, shippers can improve transparency and align with evolving sustainability expectations.

Emissions tracking is becoming a key requirement for businesses worldwide. New regulations, such as California’s Climate Corporate Data Accountability Act (SB 253), are driving mandatory disclosures of greenhouse gas emissions, while investors and customers increasingly expect sustainability commitments to be backed by measurable data.

Companies that rely on third-party logistics providers must account for Scope 3 emissions — indirect emissions from their supply-chain partners — yet many lack the necessary data to report accurately. 

Tracking Scope 3 emissions from transportation presents several industry-wide obstacles:

Limited carrier data availability. Many companies lack direct visibility into the fuel efficiency, equipment types, and operational details of their transportation providers. Without this information, emission estimates are often based on broad assumptions rather than actual carrier performance.

Highly fragmented carrier networks. The U.S. has over 800,000 trucking companies, most of which are small operators with minimal emissions reporting capabilities. Standardizing data across such a diverse landscape remains a challenge.

Evolving regulatory standards. As state and federal climate regulations develop, companies must ensure their reporting methodologies align with frameworks such as the Global Logistics Emissions Council (GLEC) and other emerging emissions disclosure requirements.

To improve emissions tracking and reporting accuracy, industry stakeholders are turning to the following data-driven methodologies:

Standardized emissions frameworks. Established guidelines such as the GLEC framework allows for consistent and comparable emissions reporting across transportation networks.

Government-backed data sources. Aggregating emissions factors from organizations like the DOT, Environmental Protection Agency, and National Highway Traffic Safety Administration provides a more reliable foundation for estimating freight emissions.

Granular, shipment-level tracking. Moving beyond broad estimates to capture truckload-level and lane-specific emissions enables a more precise understanding of transportation-related carbon impact.

These advances provide companies with more accurate emissions insights, enabling them to not only meet compliance requirements but also identify potential areas for carbon reduction within their supply chains.

As emissions tracking capabilities evolve, the next step is integrating these insights into broader sustainability strategies. Some key developments on the horizon include:

Optimizing freight routes for lower emissions. Aligning emissions data with route optimization tools to identify fuel-efficient shipping options.

Increasing access to low- and zero-emission freight capacity. Expanding shipper access to carriers with lower carbon footprints to help reduce overall transportation emissions.

Enhancing digital visibility. Developing real-time emissions dashboards to support continuous monitoring and decision-making.

These innovations will allow companies to take a more proactive approach to emissions management, balancing regulatory compliance with strategic sustainability goals.

Scope 3 emissions tracking has long been a blind spot in freight sustainability efforts, but emerging data-driven solutions are beginning to bridge this gap. By improving transparency and standardizing emissions reporting, businesses can better understand their transportation footprint, comply with evolving regulations, and make more informed sustainability decisions.

As the industry continues to adapt, collaboration between shippers, carriers and logistics providers will be essential in ensuring the availability and accuracy of emissions data, so that supply chains can move toward a lower-carbon future.