Dangerous Goods training has evolved from traditional learning to competency-based training and assessment (CBTA) as agreed by ICAO.
In IATA's new 'Dangerous Goods Training Guidance' as referenced in IATA's DGR - section 1.5:
Categories 5 & 8 have transitioned to function 7.4| Personnel Responsible for Handling/loading/unloading Cargo at warehouse/aircraft
To be determined after conducting needs assessment
Ramp and warehouse personnel
To train ramp and warehouse personnel to transport dangerous goods based on current IATA DGR. Learn how to identify and classify dangerous goods, and recognize dangerous goods labels and package marking specifications