The rule will make medication abortion, which accounts for more than half of U.S. abortions, more accessible in states where abortion remains legal, but its impact in states that have banned abortion will be limited.
Most significantly, the FDA's new regulation will not help patients get abortion pills in states that have banned abortion, said Amanda Allen of the Lawyering Project, a legal group that defends abortion rights.
Nonetheless, Allen said, the rule could make it easier to travel out of state for a medication abortion.
Currently, a patient seeking a medication abortion in another state must both obtain the prescription and the pill in that state.
Some conservative policy groups and lawmakers have proposed laws that would make it a crime to help someone travel to another state for abortion or mail them abortion pills.