Waste identification document.
From origin to plant, with its number.

The DI (documento de identificación) is the document that identifies the waste and travels with it from origin to the treatment facility in a shipment between Spain's autonomous communities (regions) (Royal Decree 553/2020, art. 2.g). The shipment operator, usually the producer, fills it in and the carrier carries it.

For non-hazardous waste going to recovery (R operations), except mixed municipal waste (LER 20 03 01, the European Waste List code). Hazardous waste, 20 03 01 and everything going to disposal need prior notification at least ten days before and an electronic DI (arts. 3.2 and 6.2).

The prior notification (NT, notificación previa) is filed on the electronic office of the Ministry or of your region at least ten days before. Then each shipment carries its own electronic DI: in e-SIR it can be entered by hand or uploaded as an XML file in E3L format, and e-SIR returns the PDF with a CSV code that travels with the load. Cofactu prepares that XML (E3L 3.6, validated against the official schema) with the DI data and your NT number, including part B with the destination facility's acceptance.

A general notification covers several shipments of the same waste to the same destination for three years at most. It is filed at least ten days before, and the shipment can leave if, ten days after the acknowledgement of receipt (two if urgent), no region has objected. A new one is needed when the whole notified quantity has been shipped, when an essential detail changes or when it expires (Royal Decree 553/2020, arts. 8 and 9). Cofactu prepares the annex II draft for you to copy into the electronic office, stores its number and acknowledgement, issues the DI of each shipment from it and keeps count of the kilos left.

Not with the national authorities: the operator fills it in and gives a copy to the carrier (art. 6.1). If the shipment stays within one region, the DI and how it is filed follow that region's rules, with the content of annexes I and III (MITECO FAQ, v3, February 2026).

It depends on the region. In Galicia every shipment is registered in GaIA (Galician Law 6/2021, art. 29.4), and in the Balearic Islands the DI is always generated in SINGER (Law 8/2019, art. 51.6, after Law 4/2026). Catalonia documents internal shipments with the full de seguiment or the DI in the SDR, with exceptions, and the Valencian Community offers TRAZA. In Madrid, Castilla y León, Asturias, Cantabria, the Basque Country, Aragon, Andalusia and Melilla it is not filed: it is carried and kept for three years. Cofactu tells you which applies from the postcodes of origin and destination.

Yes, without prior notification. Shipments of waste that is a municipal responsibility can travel with a DI valid for a quarter, whatever the fleet (Royal Decree 553/2020, art. 6.1; MITECO FAQ 9.2). If it is collected from a container or door to door, the origin is the local authority's details. In Cofactu you choose “Quarterly” when you create the DI and record each delivery with its date and kilos; when you complete it, the PDF shows the period and all the deliveries.

It depends on the region of origin. Within Catalonia, the SDR of the Waste Agency; within the Valencian Community, ADCR; within the Balearic Islands, SINGER. Andalusia (SIRA) and Galicia (GAIA) use their platform for shipments leaving for other regions too. In the rest, including Madrid, Aragon or the Basque Country, the NT is filed on the Ministry's electronic office and the DIs go through e-SIR. Only NTs and DIs filed through that procedure are valid. Cofactu tells you which one applies from the postcodes of origin and destination.

The one the operator assigns, different for each shipment. The MITECO model builds it from the NIMA (environmental ID number) of the site that generates the document (10 digits), the year (4) and a 7-digit counter. Cofactu numbers it that way automatically.

The destination facility signs for receipt and has 30 days to return the completed DI to the operator with its acceptance or rejection. That completed DI proves the waste was delivered for treatment (art. 6.4). The operator, the facilities and the carrier keep it for at least three years.

Nothing: issuing waste identification documents is free and unlimited on every plan, like the DeCA and the carta de porte (consignment note). It includes the PDF of the model, the facility's acceptance and the chronological register as CSV.