| العربية | arb-000 |
| غير إلزامي | |
| 普通话 | cmn-000 | 非强制性 |
| English | eng-000 | non-mandatory |
| English | eng-000 | nonenforceable |
| English | eng-000 | nonobligatory |
| English | eng-000 | unenforceable |
| Esperanto | epo-000 | nedeviga |
| русский | rus-000 | диспозитивный |
| русский | rus-000 | необязательный |
| español | spa-000 | sin fuerza normativa vinculante |