ECJ 4 May 2023, joined cases C-529/21-C-536/21 and C-732/21-C-738/21 (Glavna direktsia „Pozharna bezopasnost i zashtita na naselenieto“ (Travail de nuit)), Working Time
15 employees – v –Glavna direktsia ‘Pozharna bezopasnost i zashtita na naselenieto’ kam Ministerstvo na vatreshnite raboti, Bulgarian case