 |
| Subject | English | Thesaurus |
| int.transport., abbr. | Convention Supplementary to the Warsaw Convention for the Unification of certain Rules relating to International Carriage by Air performed by a person other than the contracting carrier | Guadalajara Supplementary Convention (1961) |
| abbr., post | In-Person Proofing at Post Offices Program | IPP (2004, identity confirmation for digital certificate) |