This chapter comments on Article 122 of the Rome Statute of the International Criminal Court. Article 122 provides full and exhaustive list of provisions of the Statute ‘which are of an exclusively institutional nature’. These consist of the service of judges (art. 35), criteria for the section of judges (art. 36(8)), terms of judges (art. 36(9)), judicial vacancies (art. 37), the Presidency (art. 38), organization of Chambers, with the exception of the requirement that Pre-Trial and Trial Chambers be composed predominantly of judges with criminal trial experience (art. 39(1), first two sentences), composition of Chambers (art. 39(2), (4)), election of the Prosecutor and Deputy Prosecutors (art. 42(4)), independence and recusal of the Prosecutor and Deputy Prosecutors (art. 42(5)-(8)), advisers to the Prosecutor (art. 42(9)), appointment and qualifications of the Registrar (art. 43(2), (3)), Staff (art. 44), removal from office (art. 46), disciplinary measures (art. 47), and salaries, allowances, and expenses (art. 49).