| Certificate | Level | Start Date | Expiry Date | Attach File |
|---|---|---|---|---|
| step 1 | 1 | 23/08/2006 | 22/08/2007 | |
| step 1 | 1 | 20/01/2014 | 19/01/2015 | |
| step 2 | 2 | 30/03/2015 | 29/03/2016 | |
| Accreditation | 3 | 28/08/2018 | 27/08/2020 | |
| Accreditation | 3 | 28/08/2020 | 27/08/2021 | |
| อยู่ระหว่างต่ออายุ | 3e | 28/08/2020 | 27/08/2021 | |
| Accreditation | 3 | 28/08/2021 | 27/08/2023 | View |
| Re-accreditation 2 | r2 | 28/08/2023 | 27/08/2026 | View |