Skip to content
Il Consulente AmbientaleStudio Novara
MUDMUDdeclarationwaste

MUD: who must file the environmental declaration

Redazione Il Consulente Ambientale2026-03-056 min

The MUD (annual environmental declaration) is the yearly declaration of the waste produced and managed. Not all businesses are required to file it: the obligation depends on the category of the operator and on the quantities of waste.

What the MUD is

It is the annual environmental declaration that gathers the data on the production and management of waste. It is filed electronically and covers the waste of the previous year.

Who must file it

The obligation applies to the operators identified by the legislation: original producers above certain thresholds, facility operators, carriers and brokers in the cases provided for.

  • Original producers of hazardous special waste
  • Producers of non-hazardous waste above the quantity thresholds
  • Operators of disposal and recovery facilities
  • Carriers and brokers, in the cases provided for

What the declaration contains

The declaration sets out the data on the waste produced, transported, recovered and disposed of, with EWC codes, quantities and destination facilities. The data must be consistent with registers and consignment notes.

Consequences of not filing

Failing to file the declaration, or filing it incompletely, can lead to administrative penalties. It is important to check the obligation and to prepare the declaration in good time.

Redazione Il Consulente Ambientale

Ufficio tecnico dello studio

Articoli e approfondimenti a cura dello studio, redatti e revisionati dalle figure tecniche responsabili per offrire informazioni aggiornate e affidabili sulla normativa ambientale.

Frequently asked questions

It depends on the category of the operator and on the quantities and types of waste. A specific check is required: not all businesses are subject to it.

Related insights

A guide to RENTRI registration: who is required to register, who is excluded, the implementation phases and the consequences of failing to register.

2026-01-15

Not sure whether your business must file the MUD?

We check the obligation and help you prepare the declaration.