Among executive orders signed Monday by President Donald Trump was one reinstating a federal ban on U.S. funding of international health organizations that counsel women on family planning options that include abortion. It’s known as the global gag rule.

Federal dollars are already prohibited from being used for abortions except in very limited cases. But this rule requires non-governmental organizations, as a condition of receiving any federal funding, to agree not to provide abortion services or even counseling or other abortion-related activities. Abortion can’t even be mentioned as an option.

It hamstrings providers of care and presents especially grave challenges and risks for women and girls in developing countries and zones of conflict. According to reproductive health experts, the move doesn’t necessarily prevent abortions; it makes them less safe.

“Among his first acts in office, President Trump has taken a stand against women’s health,” said Georges Benjamin, MD, executive director of APHA, in a news release. “Limiting support for comprehensive reproductive health services takes us back to failed policies that harmed women’s health. The gag rule has been associated with an increase in abortions, an increase in maternal deaths and encouraging unsafe abortions.”

“This damaging policy restricts women’s choices and promotes censorship of critical health options in clinics around the world, when studies estimate that globally between 8 percent to 18 percent of maternal mortality is due to unsafe abortion,” said Janet Walsh, acting director of the Women’s Rights Division with Human Rights Watch, in a statement.

First instituted by President Ronald Reagan in 1984, the rule, also known as the Mexico City policy, has been a political football. It was reversed by President Bill Clinton, approved again by President George W. Bush, reversed by President Barack Obama and now signed again by Trump.

APHA policy has long recognized access to the full range of reproductive and sexual health care services as a fundamental right.

To learn more about the gag rule, view this video from Planned Parenthood Federation of America.