If a religious organisation relies on an exception to the principle of equal treatment to draft rules that differ according to the religion of the employees, this must be subject to judicial review and will be acceptable only if the religion or belief constitutes a genuine and legitimate occupational requirement, justified by the ethos of the organisation concerned and the application of the exception is proportionate. If there are contrary provisions in national law, these must be disapplied.

A worker cannot automatically lose the right to annual leave because s/he did not apply for it. The employer must have informed the employee about the opportunity to take leave adequately and in a timely way, and must be able to prove this has been done.