# Identification by EORI

*This part of the iSHARE Trust Framework is considered normative and is therefore compliant with RFC 2119.*

In order for parties to identify other parties, any party fulfilling a role in the iSHARE Trust Framework MUST provide a unique identifier.

For this purpose, the Economic Operators Registration and Identification ([EORI](https://framework.ishare.eu/version-2.0.1/glossary-and-legal-notices/glossary#glossary-eorieori)) number is reused. An EORI is unique and valid throughout the European Community and is assigned by a customs authority or designated authority in a Member State. More information (in Dutch) on this process can be found [here](https://www.belastingdienst.nl/wps/wcm/connect/nl/douane_voor_bedrijven/content/hoe-kom-ik-aan-een-eori-nummer). For Dutch parties, the EORI number is self-constructed by padding your [RSIN](https://www.kvk.nl/over-kvk/over-het-handelsregister/wat-staat-er-in-het-handelsregister/nummers-in-het-handelsregister/rsin-nummer/) with 0's until it is nine digits long, with the prefix EU.EORI.NL. For example, if your RSIN is 123456, your EORI number is EU.EORI.NL000123456.

Even non-European Community parties doing business in/with Europe can request an EORI number at a National Trade Registry. The procedure to get an EORI number as a non-European Community party is detailed [here](https://www.belastingdienst.nl/wps/wcm/connect/bldcontenten/themaoverstijgend/applications_and_forms/customs/application_eori_number_for_companies_headquartered_outside_the_european_union) for the Dutch customs authority.

Currently the following identifiers are supported in iSHARE Trust Framework:

| Identifier              | Example             | Description                                        |
| ----------------------- | ------------------- | -------------------------------------------------- |
| EORI number             | EU.EORI.NL123456789 | Economic Operators Registration and Identification |
| Scheme Owner Identifier | EU.EORI.NL000000000 | Unique identifier for the Scheme Owner             |

### Role identifiers <a href="#identificationbyeori-roleidentifiers" id="identificationbyeori-roleidentifiers"></a>

In certain cases, when identifying a Certified Party it is also important to identify their role. For this purpose, the Trust Framework specifies the following identifiers:

| Role identifier         |
| ----------------------- |
| AUTHORIZATION\_REGISTRY |
| IDENTITY\_BROKER        |
| IDENTITY\_PROVIDER      |