LANSING, MICH., SEPT. 12 -- The Michigan legislature today speedily approved a veto-proof measure requiring girls 17 and younger to have a parent's consent for abortion.

The final vote was barely tallied before abortion rights activists talked about challenging the consent requirement, which takes effect 90 days after the last legislative session in December.

Lawmakers passed an identical bill earlier this year, but Gov. James J. Blanchard (D) vetoed it.

After the veto, Right to Life of Michigan gathered more than 330,000 signatures to put the proposal back before the legislature. Under the state constitution, Blanchard cannot veto the latest version because it began with a petition drive.

The Senate approved it, 28 to 9, after more than an hour of heated debate, but the House took less than 15 minutes to pass it, 61 to 40.

The Senate debate came after a committee heard emotional testimony opposing the measure by parents of an Indianapolis girl. Bill and Karen Bell said they believed that a similar law in Indiana was responsible for their daughter's death from a botched back-alley abortion.

States that enforce parental-consent or notification laws are Alabama, Arkansas, Indiana, Louisiana, Massachusetts, Minnesota, Missouri, North Dakota, Ohio, Rhode Island, South Carolina, Utah, West Virginia and Wyoming. Parental-consent bills are pending in several other states.

Last month, a federal judge struck down Pennsylvania's parental-consent law.