Table 6.

Examples of lessons learned and recommendations about process changes (based on encountered challenges during the first three COVID-19 waves).

Area	Lessons learnt	Recommendations	Participants (ID)
Process changes	Lesson learnt	National IHT processes in South Limburg (NL) interfered with regular cross-border agreements (for ex. choosing the closest hospital)	10
	Recommendation	Definition of explicit criteria to transport	12
	Lesson learnt	Little exchange of material or equipment in Europe; Lack of European solidarity (some areas were more affected than others)	20
	Lesson learnt	Procedures and standards for IHT in pandemic situations	13
	Recommendation	The EU could impose standardized crisis management for EU countries	13