HARRISBURG — Nearly all of the state’s abortion clinics are expected to remain open under a tougher law that raises surgical standards as a response to grotesque conditions discovered at a Philadelphia clinic two years ago, state officials said Monday.

The law takes effect today, six months after it was enacted over the protests of abortion rights proponents as an unnecessary law written by opponents as a stealth effort to shut down clinics. It’s unclear how many clinics will have to forgo more complicated procedures to meet the standards of the new law, and the Department of Health had no answer to the question.

Proponents of the new law say it will help protect the health and safety of women seeking abortions by putting abortion clinics under the same standards as outpatient surgical centers. In a statement, Health Secretary Eli Avila called the law “a public health victory.”

Of the 22 clinics that had been licensed under the previous law, just one, in the Pittsburgh area, will stop performing the procedure, state officials said. Two clinics connected to medical centers at the University of Pittsburgh or the University of Pennsylvania will continue to operate under a hospital license, which allows them to perform surgical abortions that require anesthesia.

Five clinics will be allowed to perform early-term abortions that use prescribed medication. Five will have three months to seek accreditation by the American Association for the Accreditation of Ambulatory Surgical Facilities to perform abortions that require local anesthesia only.

Eight will have six months to meet state standards to perform abortions that require general anesthesia, under which the patient is not fully conscious. Another, Hillcrest Women’s Medical Center in Harrisburg, has received a license to use local anesthesia, the health department said.

Clinic operators note that they were already subject to regulations and unannounced inspections.

Complying with the new law has forced many of the clinics to renovate their buildings, buy new equipment and train their staffs for what Planned Parenthood of Central Pennsylvania president Suellen Craig said are regulations that are unnecessary to provide safe abortions.

Still, she said she felt the Department of Health had treated her organization fairly.