Judgment of the Court (First Chamber) of 17 December 2020.#Federal Republic of Germany v European Commission.#Appeal – Approximation of laws – Regulation (EU) No 305/2011 – Harmonised conditions for the marketing of construction products – Harmonised standards and technical regulations – Harmonised standards EN 14342:2013, EN 14904:2006, EN 13341:2005 + A1:2011 and EN 12285-2:2005 – Action for annulment.#Joined Cases C-475/19 P and C-688/19 P.