S.C. governor signs bill banning most abortions after 20 weeks

South Carolina Gov. Nikki Haley has signed a bill into law that bans most abortions after 20 weeks.

The law provides exceptions for a procedure that would save the mother’s life or in the case that the fetus can’t survive outside the womb. There are no exceptions for cases of rape or incest.

Thirteen other states have similar bans in effect, and three more states’ bans are blocked by court challenges, according to the Associated Press. South Dakota has a ban on abortion after 20 weeks that will take effect on July 1.

Supporters of South Carolina’s bill point to claims that fetuses can feel pain after 20 weeks, which has been disputed by scientists. Others have criticized the bill for limiting abortion access for women and failing to provide exceptions for rape or incest.

Under the U.S. Supreme Court’s 1973 Roe v. Wade decision, which legalized abortion, states can restrict the procedure after the point when a fetus is viable, or likely to survive outside the womb. The justices did not pinpoint a specific date for viability, noting that it was “usually” placed at 28 weeks gestation but that it could occur earlier.