NASHVILLE (AP) - Republican Gov. Bill Haslam has signed a bill into law placing licensing restrictions on abortion clinics.

Under the new law, facilities or physician offices would have to be licensed as ambulatory surgical treatment centers if they perform more than 50 abortions in a year.

The House approved the measure on an 81-17 vote, while the Senate passed its version 28-4.

Haslam has yet to sign a separate bill to require a 48-hour waiting period before an abortion but has indicated that he plans to.

The legislation came after voters in November approved a constitutional amendment giving state lawmakers more power to regulate abortions. The ballot measure overturned a 2000 Supreme Court ruling that had thrown out laws imposing similar restrictions.