A flight passenger says he/she saw how American Airlines is cracking down on its "gate lice" policy. "Gate lice" refers to passengers who attempt to board before it's their turn.

The software sounds a chime if a passenger attempts to board a flight before their assigned group is called, alerting the gate agent and the customer.

American Airlines is stepping up its crackdown on so-called "gate lice" — passengers who hover near the boarding area or try to sneak on before their designated turn. A recent traveler at Pensacola International Airport (PNS) praised a gate agent for enforcing boarding order,

American Airlines is combating 'gate lice' by strictly enforcing boarding zones. A Reddit user highlighted a gate agent's efforts at Pensacola Airport.