| ISO 639-2/T | art-002 |
| pro | |
| ISO 639-3 | art-001 | pro |
| ISO 639-2/B | art-003 | pro |
| ISO 639-3 Reference Names | art-289 | Old Provençal (to 1500) |
| ISO 639-3 Print Names | art-290 | Old Occitan (to 1500) |
| ISO 639-3 Print Names | art-290 | Old Provençal (to 1500) |
| ISO 639-3 Inverted Names | art-291 | Occitan, Old (to 1500) |
| ISO 639-3 Inverted Names | art-291 | Provençal, Old (to 1500) |