Opinion of Advocate General Kokott delivered on 27 January 2022.#FCC Česká republika, s.r.o. v Ministerstvo životního prostředí and Others.#Request for a preliminary ruling from the Nejvyšší správní soud.#Reference for a preliminary ruling – Directive 2010/75/EU – Article 3(9) – Integrated pollution prevention and control – Procedure for amending a permit – Participation of the public concerned – Concept of ‘substantial change’ to the installation – Extension of the duration of operation of a landfill.#Case C-43/21.