Judgment of the Court (First Chamber) of 18 November 2020.#Syndicat CFTC du personnel de la Caisse primaire d’assurance maladie de la Moselle v Caisse primaire d’assurance maladie de Moselle.#Request for a preliminary ruling from the Conseil de prud'hommes de Metz.#Reference for a preliminary ruling – Social policy – Directive 2006/54/EC – Equal opportunities and equal treatment of men and women in employment and occupation – Articles 14 and 28 – National collective agreement granting the right to leave following the statutory maternity leave for female workers who bring up their children on their own – Exclusion of male workers from the right to that leave – Protection of female workers as regards both the consequences of pregnancy and the condition of maternity – Conditions under which applicable.#Case C-463/19.