In 2026, the policy for Law Enforcement Officers (LEOs) carrying weapons on aircraft remains strictly regulated by the TSA under 49 CFR § 1544.219. Generally, only federal, state, or local officers who are traveling on official duty that requires them to be armed upon arrival are permitted to carry a firearm in the cabin. This includes Federal Air Marshals and certain specialized agents. To qualify, an officer must complete the "Law Enforcement Officers Flying Armed" training and present a specific National Law Enforcement Telecommunications System (NLETS) control number at the airport. Officers traveling for personal reasons or routine business must follow the same rules as civilians: the weapon must be unloaded, locked in a hard-sided container, and transported as checked baggage. This high-fidelity security protocol ensures that only vetted, active-duty personnel with a "High-Fidelity" operational necessity are armed in the cabin, maintaining a balance between officer readiness and overall passenger safety.