STATE-NEWSRICHMOND, Va. (AP) _ Virginia Gov. Terry McAuliffe has signed into law a measure that allows the use of derivatives of the marijuana plant for treating severe epilepsy. The governor signed the bill Thursday at a Capitol ceremony featuring families with epileptic children who have suffered debilitating side effects from taking legal drugs. It’s the first effective medical marijuana legislation to win approval in Virginia, according to its House sponsor, Del. Dave Albo. The governor and other elected officials praised the families for being effective advocates for the new law. The law allows possession of cannabidiol oil or THC-A oil with written certification by a doctor that it is needed for treatment of intractable epilepsy.