25Accordingly, the rules applicable to actions for safeguarding rights which individuals derive from the direct effect of EU law must not be less favourable than those governing similar domestic actions (principle of equivalence) and must not make it in practice impossible or excessively difficult to exercise rights conferred by EU law (principle of effectiveness) (Courage and Crehan EU:C:2001:465, paragraph 29; Manfredi and Others EU:C:2006:461, paragraph 62; Pfleiderer EU:C:2011:389, paragraph 24; and Donau Chemie and Others EU:C:2013:366, paragraph 27).
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