Governor Kasich has signed into law a bill to prohibit abortion coverage by health plans operating in the new insurance exchanges that were laid out in the federal health care overhaul.
The American Civil Liberties Union of Ohio has claimed the measure is unconstitutional and has said it would fight it in court.
The ACLU of Ohio says the ban on abortion coverage violates a voter-backed state constitutional amendment that says no law or rule should prohibit the purchase or sale of health care or insurance.
The constitutional amendment was approved by voters during the last month's election.
The abortion bill was among 13 measures that Governor Kasich signed into law on Wednesday.