# Licenses

Within the Trust Framework, it is possible to explicitly provide instructions on how a service may be consumed or under which conditions data is exchanged. These instructions or conditions are called 'licenses'. Licenses are a crucial part of the Framework, because they provide its participants the possibility to clearly state what is and what is not allowed. Since all participants are bound to the same contract and underlying scheme rules, participants can appeal to each other to follow the provided licenses.

Additions to the licenses are proposed in the Change Advisory Board and processed after approval. This is part of the [Change Management ](https://gitlab.com/ishare-foundation/cab/rfc)Process.

### License code list <a href="#licenses-licensecodelist" id="licenses-licensecodelist"></a>

| Purpose code | Description                                                                                       |
| ------------ | ------------------------------------------------------------------------------------------------- |
| 0000         | No limitations                                                                                    |
| 0001         | Re-sharing with Adhering Parties only                                                             |
| 0002         | Internal use only                                                                                 |
| 0003         | Non-commercial use only: licensee may not use the data to generate revenue                        |
| 0004         | Licensee may enrich received data with own data before re-sharing                                 |
| 0005         | Licensee may enrich received data with data of others before re-sharing                           |
| 0006         | Licensee may enrich received data with own data before re-sharing on a non-commercial basis       |
| 0007         | Licensee may enrich received data with data of others before re-sharing on a non-commercial basis |
| 9999         | As determined between Parties                                                                     |


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