64The Court has thus held that national procedural rules according to which the subject matter of the dispute is determined by the pleas in law put forward at the point in time at which the action was brought are consistent with the principle of effectiveness in so far as they ensure proper conduct of proceedings by, in particular, protecting them from the delays inherent in examination of new pleas (see, to that effect, judgment of 14 December 1995, van Schijndel and van Veen, C‑430/93 and C‑431/93, EU:C:1995:441, paragraph 21).
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