Judgment of the Court (Second Chamber) of 15 July 2021.#XX v Tartu Vangla.#Request for a preliminary ruling from the Riigikohus.#Reference for a preliminary ruling – Social policy – Equal treatment in employment and occupation – Directive 2000/78/EC – Prohibition of discrimination on grounds of disability – Article 2(2)(a) – Article 4(1) – Article 5 – National legislation laying down requirements in respect of the hearing acuity of prison officers – Failure to meet the standards of sound perception required – Absolute bar to remaining in employment.#Case C-795/19.