When implementing their working time obligations, EU law requires employers to prioritise workers’ safety, hygiene and health over “purely economic considerations” (Federacion de Servicios Privados del Sindicato Comisiones Obreras v Tyco Integrated Security s.l. [2015] EUEJC C-266/14). (See Chapter 1 concerning the status and interpretation of EU law in the UK now the EU Law (Revocation and Reform) Act 2023 is in force.)