Is there a legally mandated filing fee and/or deposit?

Organic Law of 3 October 2005 on the other responsibilities of theConstitutional Court / Loi organique du 3 octobre 2005 relative aux autresattributions de la cour constitutionnelle

Art. 10 (4) :The petition is exempt from any stamp and registration fees.

(? Larequ?te (…) est dispens?e de tous frais de timbre ou d’enregistrement. ?)