The main purpose of this legislation is to ensure that during a government shutdown, commercial flights cannot be restricted unless private flights are also restricted in the same area. This aims to create fairness in how flight operations are managed during times when government funding is not available. The key provisions of this legislation state that the Federal Aviation Administration (FAA) cannot limit or stop commercial flights in U.S. airspace due to a lapse in government funding unless it has also imposed similar restrictions on private flights in the same region.