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When the EU wanted to extend its jurisdiction into social policy and employment law, it needed the permission of all member states. The UK opposed the move but eventually agreed to allow the others to go ahead, using the institutions of the EU, provided there was a legal guarantee that Britain would not be forced to join in. The moment the ink was dry on that guarantee, the then eleven other states began to agitate to extend their rules to the UK. Because Britain had an opt-out on social and employment policy, they reintroduced the main pillar of that policy - a directive regulating paid holidays, maximum weekly working times and the like - as a 'health and safety' measure (the 1993 Working Time Directive). The Major government protested that the measure was plainly social policy rather than health and safety - it allowed employees to work more than forty-eight hours a week, provided they were given overtime - but the ECJ decided that health and safety didn't just mean being safe at work: it also meant looking after the 'social well-being' of employees.