MITECO carbon footprint registry

What governs it

Royal Decree 214/2025, in force since June 12, 2025. It replaced Royal Decree 163/2014, which created the registry, and kept earlier registrations valid unless they need updating.

It has three sections: carbon footprint and reduction commitments, CO2 absorption projects, and footprint offsetting.

Is it mandatory?

Registering is not, for companies. Calculating is, for some: those required to publish a non-financial information statement must calculate their Scope 1 and 2 footprint every year and publish a reduction plan at least five years out. The state public sector must also register.

Registration is free.

The three seals

• Calculo: the organization calculated its footprint and submitted a reduction plan.
• Reduzco: it also reduced it. The registry compares the average intensity of the last three years with that of the three before, so four years registered are needed.
• Compenso: it also offset all or part of its footprint with absorption projects from the registry or reduction projects recognized by the ministry.

In February 2026 there were 6,788 organizations registered. 78% of the seals were Calculo only.

Source: Royal Decree 214/2025, BOE (in Spanish) and 2025 annual report of the registry, MITECO (in Spanish).