Emissions reporting in Spain: Real Decreto 214/2025 and other requirements

In short: new emissions reporting requirements in Spain

• While there is some uncertainty around certain EU-level sustainability regulations, countries like Spain are doubling down on national requirements for transparent emissions reporting. 
• Real Decreto 214/2025 makes annual carbon footprinting, disclosures, and emissions reduction plans mandatory for large companies in Spain
• Ley de Movilidad Sostenible introduces new obligations for companies with 200+ employees (or 100 per shift), including sustainable mobility plans. 
• Ley 6/2022 (Valencia) requires medium and large companies operating in the region to calculate, verify, and register their carbon footprint.
• BigMile helps companies calculate, manage, and report on their emissions, using internationally recognised standards such as ISO 14083.  

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Rising temperatures in Spain leave little room for doubt: the country is tackling climate change seriously with ambitious requirements for measuring and reducing corporate emissions.

Despite sustainability rules shifting at an EU level and even being simplified in some cases, Spain is moving in the opposite direction. New national, regional, and sector-specific regulations require thousands of companies to calculate and report their carbon footprint, and take action to reduce their transport emissions. 

Companies that prepare early will not only avoid compliance gaps, but will also gain an advantage in tenders, identify operational inefficiencies, and reduce their emissions. We’ll now walk through the main emissions reporting requirements in Spain. 

Real Decreto 214/2025

Real Decreto 214/2025 came into force in June 2025 to turn Spain’s voluntary carbon registry into mandatory carbon footprint reporting for certain companies. Under this regulation, companies have to: 

• Calculate their greenhouse-gas emissions annually
• Use methodologies aligned with the GHG Protocol such as ISO 14064 and ISO 14083 
• Cover scope 1, scope 2, and in some cases scope 3 emissions
• Register their carbon footprint with MITECO
• Develop and submit an emissions reduction plan

The law applies to companies already required to publish a consolidated non-financial statement, which is typically those with more than 500 employees or considered public-interest entities, as well as certain state-level public bodies.

For many of these companies, Real Decreto 214/2025 marks the first time they must produce verified, auditable emissions reports and introduce formal emissions reduction plans. As all the disclosures will be submitted to MITECO, it puts even more pressure on these companies to make efforts to reduce emissions as it’ll be easy for potential buyers to compare the emissions of different companies. 

Ley de Movilidad Sostenible

The Ley de Movilidad Sostenible is Spain’s new national framework to make transport greener, safer, and overall more efficient throughout the country, and was approved by Congreso de los Diputados in October 2025 and put into action late November. 

It sets out how companies, public administrations, and transport operators must plan, measure, and reduce the environmental impact of their mobility and transport activities.

If you have operations in Spain and 200+ employees (or 100+ employees working in any one shift), then the following requirements will apply to you: 

• Develop and implement sustainable mobility plans
• Make efforts to reduce transport emissions, such as encouraging public transport or shared mobility among your staff
• Assess and improve the sustainability of your company fleet, including evaluating low-emission and electric options
• Comply with local mobility rules, such as potential taxes or restrictions on high-emitting vehicles entering certain zones
• Monitor and report mobility-related indicators to track progress

It also introduces other measures that may affect how your employees travel for business or to the office. This includes limits to flights when a train alternative of under 2.5 hours is available. 

Local regulations in Spain

While national regulations are tightening, several regions have gone even further with their own sustainability requirements. If you’re based in one of these regions—or even if you just have operations there in some cases—then you need to also be aware of and comply with these local rules. 

Ley 6/2022 de la Huella de Carbono (Valencia)

Take Valencia as an example, where the regional government introduced advanced carbon footprint laws back in 2023. It applied to all public sector entities immediately and to medium and large private companies (according to the EU definition) since January 2025, even if they’re not based in Valencia but only have operations there. 

This means it can include companies with as little as 50 employees in the region, following the EU definition of a medium-sized company, requiring them to calculate their carbon footprint, register validated emissions data with the regional authority, and prepare an emissions reduction plan. 

How to get started with emissions calculation 

The good news is that preparing for these requirements doesn’t have to be complex, time-consuming or expensive as long as you take a step-by-step approach and have the right tools at hand. 

1. Map your emissions sources: identify where emissions occur across your operations e.g. transport, energy use, buildings, travel, and supply chain.
2. Collect emissions data: gather fuel data, shipment activity, electricity, water and gas consumption of your offices, warehouses and other activities, fleet information, and any exports from your TMS/ERP.
3. Select your preferred emissions calculation method: you can calculate emissions with spreadsheets and free online calculators, but to get accurate emissions data you’ll need a carbon accounting software like BigMile (or our Emissions API which connects directly with your TMS). 
4. Calculate your baseline carbon footprint: once you’ve imported your data into your chosen tool you can generate your first full emissions profile across Scopes 1, 2, and 3 to create your baseline.  
5. Report your emissions: share emissions data with your clients, stakeholders or to prepare reports, such as your carbon footprint disclosure under Real Decreto 214/2025. 
6. Identify and prioritize reduction opportunities: use your results to target actions such as route optimization, fleet improvements, and modal shift. Programs such as Lean & Green by AECOC help to get recognition for achieving such a reduction. 

Following these steps will help you build a reliable emissions baseline and comply with Real Decreto 214/2025, Ley de Movilidad Sostenible, Ley 6/2022 (Valencia), or any other emissions requirement.

Why BigMile is the preferred solution for companies with transport and logistics operations around the world

At BigMile, we help hundreds of companies to easily and accurately calculate and report on their emissions through our platform, using methodologies that are aligned with global standards like ISO 14083 and GLEC Framework. 

This helps organisations meet growing reporting requirements in Spain and across Europe, while also giving them the insights they need to improve efficiency, respond to customer requests for transparent data, and make better decisions about their logistics operations. 

Want to learn more about getting started with carbon accounting or complying with Spanish and EU regulations? Book a call with Sven Poot, Country Manager for Spain, to see the platform in action and get advice on how it can work for you.