Viability standards refer to the medical criteria used to determine whether a fetus has reached a stage of development at which it can survive outside the womb, typically around 24 weeks of gestation. This concept is significant in the context of abortion rights, as it influences the legal framework governing when states can regulate or restrict access to abortion services. The determination of viability is not only a medical issue but also intersects with legal debates regarding reproductive rights and the extent of government intervention in personal health decisions.