CO₂ tracking for transportation companies: From mandatory reporting to lower operating costs

Whether or not they are required to report, more and more logistics companies must be able to demonstrate how much CO₂ their fleets emit. This pressure is coming from three directions at once: laws and regulations, clients who want to gain insight into their supply chain, and the need to reduce their own costs to remain competitive. But before you can report on emissions, you must first measure and record them reliably. In this article, you’ll learn why CO₂ tracking is rapidly becoming more important, how it works technically, what data you need for it, and why it’s smart to integrate that measurement layer into your own fleet platform.

CO₂ tracking is high on the agenda for logistics organizations. Not only regulators, but also clients, investors, and consumers are paying increasingly close attention to the sector’s carbon footprint. For a transportation company, this touches on two things at once: the social responsibility to contribute to a cleaner environment and the business reality that lower emissions usually also mean lower fuel costs. CO₂ tracking. the systematic measurement and recording of those emissions, is the first step toward gaining control over both aspects. Three forces are driving this development: regulation, bottom-line performance, and supply-chain pressure.

On the regulatory front, pressure is mounting. The EU has set CO₂ reduction targets for new heavy-duty commercial vehicles, rising to 90% by 2040. These targets apply to vehicle manufacturers (not directly to you as a carrier) but they have an indirect impact because the market is shifting toward more fuel-efficient and zero-emission vehicles. In addition, there are reporting requirements related to sustainability, with the European Corporate Sustainability Reporting Directive (CSRD) being the best-known example.

The business perspective is just as important. Fuel is one of the largest cost items for transportation companies, and CO₂ emissions are directly linked to it. Those who understand their emissions can optimize routes, improve load factors, and reduce unnecessary idling. In this way, CO₂ tracking becomes more than just a compliance exercise. It pays for itself.

Finally, there is pressure from the supply chain. Shippers are increasingly required to report their own Scope 3 emissions: all emissions generated elsewhere in their supply chain, including the trips you drive for them. Those who can accurately provide this data have a competitive advantage in bidding processes; those who cannot will lose contracts.

Mandatory or not? What this means for you

The question of whether CO₂ reporting is legally required does not have a simple yes or no answer. Since the European Omnibus Directive took effect in March 2026, the group of companies directly subject to the CSRD has been significantly reduced: only organizations with more than 1,000 employees and annual revenue exceeding 450 million euros are still required to report. As a result, many transportation companies are no longer subject to the direct reporting requirement, but they will still face requests for information from their customers and supply chain partners.

In practical terms, this changes little. Your major clients are often subject to the regulations, and they need your emissions data to map out their own supply chains. Whether the law affects you directly or not, your clients will simply ask for the figures. The question, therefore, is not so much whether you need to measure, but whether your systems can reliably provide that data the moment a client requests it.

Euro standards and CO₂ standards are not the same

A common mistake is confusing the Euro emission standards with the CO₂ standards. The Euro standards (Euro 6 and the now-adopted Euro 7) regulate air pollutants such as nitrogen oxides and particulate matter and are focused on air quality. A separate regulation applies to truck CO₂ emissions, which focuses on fuel consumption and greenhouse gases, using the European simulation tool VECTO to determine vehicles’ fuel consumption and CO₂ performance. Both standards are driving the vehicle fleet toward cleaner vehicles, but they are separate from the question of whether you are required to measure and report your own emissions.

What CO₂ tracking entails and how it works

CO₂ tracking, also known asCO₂ monitoring, is the systematic measurement, recording, and analysis of the greenhouse gases emitted by your fleet. You collect data on fuel consumption per vehicle, per trip, and per route, and convert that data into CO₂ equivalents using emission factors.

The GHG Protocol (Greenhouse Gas Protocol), the globally recognized standard for measuring and reporting greenhouse gas emissions, categorizes emissions into three scopes: Scope 1 (direct emissions from your own vehicles), Scope 2 (indirect emissions from purchased energy, such as charging electricity for electric vehicles), and Scope 3 (the broader supply chain, such as fuel production and trips by subcontractors). For a transportation company, the largest direct emissions fall under Scope 1, making your fleet the most important source to monitor.

In practice, accurate monitoring relies on telematics: on-board equipment that uses GPS, IoT sensors, and the on-board computer to continuously collect data on fuel consumption, mileage, idling, and driving behavior, and transmits this data wirelessly to a central platform. By combining this data with recognized emission factors, for example, from the GHG Protocol or the GLEC Framework (Global Logistics Emissions Council), the platform calculates emissions down to the level of the vehicle, driver, trip, or customer. The rule of thumb is simple: the more variables you measure accurately rather than estimate, the more reliable your CO₂ figures will be.

The challenges of reliable CO₂ tracking

Reliable CO₂ tracking is more difficult in practice than it sounds. The biggest challenges are data quality and fragmentation: not every vehicle is equipped with telematics; older vehicles sometimes do not provide accurate fuel consumption data; manual entry is prone to errors; and different telematics providers deliver data in varying formats.

Added to this is a heterogeneous fleet: different makes, ages, fuel types, and Euro classes make it difficult to establish a uniform measurement model. Scope 3 often accounts for the largest portion of the carbon footprint, yet it is the aspect you have the least direct visibility into, especially when transportation is outsourced. There is also a lack of full standardization: multiple methodologies and emission factors—such as the GLEC Framework, the GHG Protocol, and the ISO 14083 standard—coexist and influence the outcome. Finally, monitoring requires integration: data from telematics, transport management systems, ERP, and fuel management must be consolidated into a single environment, while many organizations still rely on disparate systems.

Standard tool or a proprietary fleet platform?

There are off-the-shelf solutions on the market: specialized telematics providers offer a CO₂ or greenhouse gas module on top of their own platform, often using an externally certified calculation method. This is an attractive option for those who want to get started quickly. The downside is that the emissions data is then stored in a separate system, alongside your operational platform, with the risk of duplicate data sets, disjointed integrations, and fragmented reporting.

If you already have your own fleet management platform, or are considering having one built, there’s a more logical alternative. After all, your platform already has the underlying data in-house: trips, kilometers, vehicle types, and often fuel or CAN-bus data as well. At its core, CO₂ tracking is a calculation layer that applies emission factors to that data, plus a reporting layer on top of it. If you manage the platform yourself, you can build that layer directly into it instead of exporting data back and forth to an external tool.

This delivers concrete benefits. You work from a single source of truth (SSOT), which means CO₂ is integrated alongside your existing KPIs, and you can link emissions to a trip, route, customer, or vehicle. You report in exactly the format your clients and supply chain partners require. You avoid dependence on a single vendor, and you don’t pay a per-vehicle subscription fee for a feature you own yourself. Furthermore, custom software makes your logistics organization future-proof: you can implement new emission factors, additional Scope 3 requirements, or client-specific reports yourself, without having to wait for a vendor to include them in their roadmap. This way, CO₂ becomes a key performance indicator in your operations, rather than just a number you track solely for mandatory reporting.

To be fair: a standard software package is usually up and running faster, and the calculation methodology is often already certified—something you’d have to ensure yourself with custom software. However, for organizations where the vehicle fleet is a core component of the primary process, the strategic value of proprietary, integrated data usually outweighs these considerations. Implementing such a measurement layer does require the right expertise and experience. If that expertise isn’t available in-house, you can partner with an experienced development partner, such as NetRom Software.

Ready to integrate CO₂ tracking into your own platform?

At NetRom Software, we help transportation companies and logistics service providers incorporate CO₂ tracking as a natural layer within their own fleet platform. We link the telematics and logistics data you already have. On that foundation, we build the calculation and reporting layer that fits your data model, tailored to what your clients require. This turns your emissions into a control variable that simultaneously helps you reduce your operational costs. With our many years of experience in successful software projects for the transport and logistics, we’d love to work with you to find solutions. Would you like to know how we can help your organization gain insight into your CO₂ emissions while simultaneously reducing your operational costs? Contact us for a no-obligation consultation where you can tell us everything about how we can help you achieve your digital ambitions.