In a move that could trump state legislative actions in Pennsylvania and across the nation, U.S. Rep. Scott Perry is on Monday introducing a bill to nationally legalize a marijuana-based oil that has been shown to reduce seizures in children with debilitating epilepsy.

The conservative York County Republican made the announcement Monday morning at a press conference where he was joined by the president of the national Epilepsy Foundation and advocates that included the mother of Colorado girl Charlotte Figi, whose successful treatment with cannabidiol oil has inspired a national movement.

Joel Stanley, one of the creators of the “Charlotte’s Web” strain of marijuana used to treat Figi, was also present for the introduction announcement of Perry’s bill, the “Charlotte’s Web Medical Hemp Act of 2014.”

The bill would give children and adults with epilepsy and other seizure disorders access to the oil (called CBD) for treatment by removing CBD…