https://theaviationist.com/2022/05/05/usaf-certifies-polish-m346-training/

Following a week-long assessment in late 2021, the U.S. Air Force certified the Polish Air Force training system with the M-346 Bielik at the 41st Training Aviation Base in Dęblin as equivalent to the training performed on the T-38C Talon in the USA, multiple Polish media outlets have reported.

Following this certification, Polish pilots will now be able to complete their training at home before joining the Operational Conversion Unit, without the need of additional training abroad.

The US personnel performed a very throughout assessment