| 2006 | - Implementation of EPTA by G-TELP and IAES |
| 2016 | - Plan for Improving EPTA with review and analysis |
| 2018 | - Preparation Guide for Aviation English Proficiency Test published with sample sets for pilots and air traffic controllers |
| 2019 | - Unification of enforcement agency to Korea Transportation Safety Authority (KOTSA)- Implementation of CBT (computer based test) EPTA for Level 4 and 5- Interview Teat for Level 6- Integrated evaluation of listening and speaking skills |
| 2021 | - Standard Handbook for EPTA published: Preparation Guide for English Proficiency Test for Aviation |
| 2021 | - Research Project of EPTA Improvement by the Ministry of Land, Infrastructure and Transport |