placing in service
as defined in Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May…, Article 2, point (19) (Definitions)
all the operations by which a subsystem is put into its operational service
as defined in Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May…, Article 2, point (19) (Definitions)
all the operations by which a subsystem is put into its operational service