JACKSON, Miss. (AP) — The woman whose daughter's name is on Mississippi's marijuana oil law has begun a drive for a state constitutional amendment allowing medical marijuana use.

A news release says Ashley Durval registered an initiative Monday with the Mississippi Secretary of State's Office.

Her group, called Mississippians for Compassionate Care, must collect at least 86,185 certified signatures over the next year from across the state to get Medical Marijuana 2020 on the statewide ballot in 2020.

The Legislature passed Harper Grace's Law in 2014, removing marijuana extract oil from the Mississippi's list of controlled substances. Harper Grace Durval has a rare form of epilepsy. She was 2 years old when the law was passed.

Durval says that her daughter has not yet been able to get the oil for treatment.