The justices left in place a lower court ruling that struck down the 2016 law, which would have criminalized a method called dilation and evacuation that is the most common type of abortion performed during the second trimester of a pregnancy.
The law in question is different than an even more strict Alabama measure signed by Republican Governor Kay Ivey in May. The new law, also facing a legal challenge, would ban nearly all abortions in the state, even in cases of rape and incest.