In a ruling considered historic, the US Supreme Court struck down a Louisiana state law that restricted abortion.
The measure represents a setback for Donald Trump, whose government supported the rule.
It is also a victory for the American civil movement that supports the possibility of the voluntary interruption of pregnancies.
The judges' decision was split and ended 5-4 as Supreme Court Justice John Roberts joined the four judges considered liberals.
The controversial rule required doctors who performed abortions to have special affiliation called "admitting privileges" at hospitals, which the judges said made it unduly difficult for women who wanted to terminate their pregnancies.
The Supreme Court recalled that it already annulled a similar policy in Texas in 2016.
Trump, who is seeking re-election on Nov. 3, promised during the 2016 presidential race to name the justices who would overturn the landmark Roe vs. Wade in 1973 that allowed abortion to be legalized in different states.
Abortion remains an issue that divides opinion in the United States, as it does in many other countries.
Norma McCorvey, the woman whose case legalized abortion in the United States (and later repented)
Christian conservative groups, which represent a significant part of Trump's electorate, are one of the sectors that most opposes this practice.
The Republican president, who years earlier had supported abortion rights, attended an anti-abortion march in January, going so far as to say that "unborn children have never had a stronger advocate in the White House."