The governor of the US state of Illinois enacted a law establishing a "fundamental right" to abortion and removing old laws that criminalized the procedure.
The Illinois law was passed in response to a wave of bans and restrictions approved in other states, and Governor JB Pritzker hailed it as "a beacon of hope in the heart of this nation."
"Today we proudly proclaim that in this state, we trust women," Pritzker said as he signed the Reproductive Health Act into law. "And in Illinois we guarantee as a fundamental right a woman's right to choose."
The law repeals criminal penalties on abortion providers, codifying what had already been de facto law through court rulings.
The measure also requires private health insurance companies in the state to cover abortion procedures.
"We are building a firewall around Illinois to protect reproductive access for everyone," state representative Kelly Cassidy, one of the law's chief sponsors said.
Pritzker, a Democrat, said the added legal protections are necessary in the event that the US Supreme Court rules in the future to impose new abortion limits.
"Those opposed to women's reproductive rights are emboldened," the governor said, "And their hopeful eyes are on the highest court in the land."
It comes as more conservative US states have enacted restrictions on abortion as part of a strategy to push the issue to the Supreme Court.
The top court upheld women's right to abortion in its landmark 1973 Roe v. Wade decision, but anti-abortion forces hope to overturn it now that the court's conservative majority has been strengthened with the addition of two justices appointed by President Donald Trump.
Alabama approved a near complete abortion ban in May, and six other states have tightened abortion access in recent months, making the procedure illegal when fetal heartbeat is detected -- usually around the six-week mark, when many women are not aware they are pregnant.
Pritzker said Illinois would be willing to accept "refugees from other states" where women might be denied abortion access.
In neighboring Missouri, for example, the fate of the last remaining abortion clinic is in the hands of a judge who is considering whether to allow it to continue operating.
