States now may restrict the procedure, and many have taken steps to curtail or ban abortions.
Wolf signed an executive order on Tuesday to back up his statement.
“By signing this executive order, I am affirming that individuals seeking and providing reproductive health services are safe in the commonwealth from discipline and prosecution,” he wrote in a statement.
Abortion remains legal in Pennsylvania up to 24 weeks of pregnancy. Wolf supports abortion rights and has vetoed three bills from the Republican-controlled Legislature in the past five years to restrict the procedure.