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The IATA Operational Safety Audit (IOSA) is the benchmark for global safety management in airlines. All IATA members are registered and must remain registered in order to maintain IATA membership. See the applicability of IOSA standards and recommended practices (ISARPs).
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Found 437 operators
| Name | IATA code | ICAO code | Country / Territory | Region | Expiry Date |
| TACA International Airlines SA | TA | TAI | El Salvador | The Americas | 25 February 2026 |
| Tailwind Havayollari AS | TI* | TWI | Türkiye | Europe | 12 January 2025 |
| TAP Air Portugal | TP | TAP | Portugal | Europe | 20 November 2024 |
| Tassili Airlines | SF | DTH | Algeria | Africa & Middle East | 11 February 2025 |
| TATA SIA Airlines Limited (Vistara) | UK | VTI | India | Asia Pacific | 1 September 2024 |
| Thai AirAsia X | XJ | TAX | Thailand | Asia Pacific | 10 August 2024 |
| Thai Airways International Public Company Limited | TG | THA | Thailand | Asia Pacific | 28 May 2025 |
| Thai Lion Air | SL | TLM | Thailand | Asia Pacific | 29 May 2025 |
| Thai Smile Airways | WE | THD | Thailand | Asia Pacific | 15 September 2024 |
| Tianjin Airlines Co Ltd | GS | GCR | China (People's Republic of) | China & North Asia | 1 April 2025 |