The commencement of the Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 in September 2024 provides for mandatory – as opposed to voluntary – open disclosure. This marks a major development for the Irish healthcare sector. The overarching purpose of the Act is to improve the health service's management of patient safety incidents and, consequently, improve the safety of patients. The aim of this legislation is to bring about a cultural shift towards openness and transparency. This landmark legislation could lead to a reduction in medical negligence claims over time.