A federal judge on Wednesday struck down a new rule, not yet in effect, that allowed health care clinicians to refuse participation in abortions and other services on moral or religious grounds.
U.S. District Judge Paul A. Engelmayer in New York said he was tossing out the rule in its entirety.
The decision came after 19 states, the District of Columbia, three local governments, health organizations and others sued the U.S. Department of Health and Human Services.
The rule let clinicians object to providing abortions and other services that conflict with their moral and religious beliefs.
Engelmayer said his ruling came in three consolidated lawsuits.
Plaintiffs had argued that the rule was unconstitutional because it would be discriminatory and stall access to health care for populations nationwide.
The U.S. Justice Department did not immediately respond to a message seeking comment.
Clare Coleman, president of the National Family Planning & Reproductive Health Association, one of the plaintiffs, said the group was "heartened by today's ruling."
New York Attorney General Letitia James said the state sued in part because the rule "was an unlawful attempt to allow health care providers to openly discriminate and refuse to provide necessary health care to patients based on providers' 'religious beliefs or moral objections.'"