PENN TWP — The Pittsburgh-Butler Regional Airport has rescheduled a free seminar on drones for Saturday.

A representative of the Federal Aviation Administration will explain the regulations that apply to drone flying, followed by a flight demonstration and a question and answer period.

The seminar will be held from 9:30 until 11 a.m., inside a hangar at the airport, 475 Airport Road.

The event initially had been set for Dec. 17 but was rescheduled due to bad weather. Registration is required, even for those who registered for the canceled session.

Register at http://butlercountyairport.org/ or call the airport at 724-586-6665. Seating is limited.