Singapore has implemented legislation that allows for the automatic removal of kidneys, heart, liver, and corneas from Singaporean citizens and permanent residents upon death, unless they have opted out. This law aims to improve organ donation rates and save more lives by facilitating transplants for those in need. Individuals can choose to opt out on religious or other grounds, but may be deprioritized for receiving organs if they do so. The act also has strict regulations and penalties to prevent organ trading and ensure ethical practices in transplantation.