Gov. Scott Walker has signed into law a bill that legalizes possession of a marijuana extract used to treat seizures.

The governor signed the bill Monday in Burlington.

Parents of children who suffer from seizures have pushed for access to cannabidiol oil for years.

The bill makes possession of the oil legal with a doctor's certification, but it's still against the law to produce or sell the oil in the state.

Sally Schaefer’s 7-year-old epileptic daughter died before she could get it. From her Burlington home, Schaefer led a coalition of persistent parents that won over skeptical lawmakers who feared approving CBD oil was a first step toward legalizing marijuana.

Schaefer said she wishes Monday’s signing ceremony would’ve come a lot quicker, but said she’s not bitter.

Sign up for daily news! Stay informed with WPR's email newsletter.

"I don't blame the physicians, the legislators or anyone for the death of my daughter. I'm her mother, and honestly I take a lot of blame because I was supposed to keep her alive, and I couldn't," she said keeping back tears.

The measure passed the Republican-controlled Legislature after a similar version stalled last session amid fears it would lead to full marijuana legalization. The oil does not produce a high.

In a bit of a heads-up to legislators, Schaefer hinted she could be back.

"There is more to be done here in the state of Wisconsin when it comes to the oil, such as, you know, if we can possibly produce it and cultivate it," she said.

Editor's Note: This story was last updated at 10:04 a.m. Tuesday, April 18 with comments from Sally Schaefer.