A bill that would allow electrocution in Tennessee is moving forward in the state legislature.

The House voted 68-13 Wednesday to approve the measure. That bill would keep lethal injection as the preferred method for executions, but would allow a return to the electric chair if the state was unable to obtain the necessary drugs or if lethal injections were found unconstitutional.

The Senate, which passed a similar bill last week, would have to agree to House changes before sending the bill to the governor's desk.

The state's last electrocution was in 2007.