| Value | Description | Notes |
|---|---|---|
| 00 | Unrestricted | Any audience |
| 01 | Restricted | Distribution by agreement between the parties to the ONIX exchange (this value is provided to cover applications where ONIX content includes material which is not for general distribution) |
| 02 | Booktrade | Distributors, bookstores, publisher’s own staff etc |
| 03 | End-customers | |
| 04 | Librarians | |
| 05 | Teachers | |
| 06 | Students | |
| 07 | Press | Press or other media |
| 08 | Shopping comparison service | Where a specially formatted description is required for this audience |