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[1] The Working Time Directive guarantees a minimum of 4 weeks per year of paid annual leave. 'Working Time Directive', EU Commission.
[2] The EU sets a framework to ensure employers have an obligation to ensure the safety of their workers, and prevent occupational accidents. Council Directive 89/391/EEC of 12 June 1989 on the introduction of measures to encourage improvements in the safety and health of workers at work.
[3] The EU guarantees a minimum level of effective protection to temporary workers, ensuring that flexible working arrangements are not used to deny basic rights to temporary workers or to undercut permanent employees. 'Temporary Agency Workers', EU Commission.
[4] Council Directive 92/85/EEC of 19 October 1992 on the introduction of measures to encourage improvements in the safety and health at work of pregnant workers and workers who have recently given birth or are breastfeeding; Council Directive 2010/18/EU of 8 March 2010 implementing the revised Framework Agreement on parental leave.