Abortion in Ireland is regulated by the Health (Regulation of Termination of Pregnancy) Act 2018. Abortion is permitted in Ireland during the first twelve weeks of pregnancy, and later in cases where the pregnant woman's life or health is at risk, or in the cases of a fatal foetal abnormality. Abortion services commenced on 1 January 2019, following its legalisation by the aforementioned Act, which became law on 20 December 2018. Previously, the 8th Constitutional Amendment had given the life of the unborn foetus the same value as that of its mother, but the 36th constitutional amendment, approved by referendum in May 2018, replaced this with a clause permitting the Oireachtas (parliament) to legislate for the termination of pregnancies.