regulate the legroom "seat pitch" of airline economy class seats to a minimum of 40 inches for safety and health reasons

This is a safety and health issue. Studies have concluded that economy-class air passengers do not have adequate space to assume a correct "brace" position for emergency landing, and the seats themselves can be obstacles to quick emergency evacuation of the cabin. Federal Aviation Administration (FAA) does not prescribe minimum seat spacing requirements for civilian air travel. As a result airlines have constantly squeezed in passengers for the sake of profits. The normal legroom "seat pitch" these days for most airlines is 31-32-inches, which is dangerously tight for those who suffer from the occurrence and want to prevent Deep Vein Thrombosis (DVT). Please sign the petition for airline safety reasons.