From 8 February 2022, the use of country code ‘EU’ when declaring goods is changing.

For CHIEF the country code ‘EU’ will no longer be a valid in any data field and the specific Member State country code must be used.

For CDS, we advise you to use the specific Member State Country code for the time being.  Removal of the country code ‘EU’ on CDS and the Online Tariff Tool will take place later. 

For supplementary declarations that are submitted after 8 February 2022, the specific Member State country code must be used regardless of whether the tax point is before this date.

The list of valid country codes for the Member States is as follows:
Austria (AT)
Belgium (BE)
Bulgaria (BG)
Croatia (HR)
Republic of Cyprus (CY)
Czech Republic (CZ)
Denmark, except the Faroe Islands and Greenland (DK)
Estonia (EE)
Finland, but excluding the Åland Islands (FI)
France, including Monaco but excluding Guadeloupe, Martinique, Réunion, St Pierre and Miquelon, and French Guiana (FR)
Germany, except Büsingen and the Isle of Heligoland (DE)
Greece (EL)
Hungary (HU)
Ireland (IE)
Italy, except the communes of Livigno and Campione d’Italia and the Italian waters of Lake Lugano (IT)
Latvia (LV)
Lithuania (LT)
Luxembourg (LU)
Malta (MT)
Netherlands (NL)
Poland (PL)
Portugal, including the Azores and Madeira (PT)
Romania (RO)
Slovak Republic (SK)
Slovenia (SI)
Spain, including the Balearic Islands but excluding Ceuta, Melilla and the Canary Islands (ES)
Sweden (SE)

You can find the list of country codes for the Member States by following the link below:
EU country codes, VAT numbers and enquiry letters for EC Sales Lists – GOV.UK