Dangerous goods training - Are there any additional requirements for personnel whose dangerous goods by air training course has expired and who have to continue working?

According to Article 9 b) of Order TMA/285/2020, of 25 March, the necessary alternative measures must be adopted to ensure that the personnel concerned maintain the aptitude, knowledge and are up to date with the changes that have occurred in the Technical Instructions for the Safe Transport of Dangerous Goods by Air ICAO Doc9284/AN905, and that affect the performance of their duties.