For active-duty officers who carry under the Law Enforcement Officers Safety Act, 18 U.S.C. § 926B, airports represent one of the most legally layered environments you will encounter. A single terminal can simultaneously fall under federal jurisdiction, state law, local ordinance, and the authority of a private airport operator — each with its own rules about who may be armed and where. LEOSA's federal preemption of state and local concealed-carry laws does a great deal of work here, but it does not do all of the work, and the gaps matter operationally.
What LEOSA Actually Preempts at an Airport
Section 926B grants a qualified law enforcement officer the right to carry a concealed firearm notwithstanding any provision of state or local law. That language is broad, and it generally means that a state statute or municipal ordinance prohibiting concealed carry in an airport terminal — the non-sterile, publicly accessible area — does not apply to a qualifying active-duty officer who meets the statute's requirements.
Several states have enacted laws that expressly prohibit firearms in airport terminals, and a handful extend that prohibition to parking structures and access roads on airport property. Under 18 U.S.C. § 926B, those state-level prohibitions are preempted for qualifying officers in their covered capacity. However, preemption of state law is not the same as preemption of federal law, and airports are heavily regulated at the federal level through the Transportation Security Administration and the Federal Aviation Administration.
The TSA Checkpoint: Where LEOSA Stops
The most operationally important line in any airport is the TSA security checkpoint — the boundary between the public-access area (the "landside") and the sterile area beyond the screening lanes. Federal regulations administered by TSA govern what may and may not enter the sterile area, and those regulations are federal law, not state or local law.
Because 18 U.S.C. § 926B only preempts state and local restrictions, it does not override federal TSA screening requirements. An active-duty officer carrying under LEOSA alone — without a separate law enforcement authorization from the relevant airport authority or a TSA Law Enforcement Officer (LEO) designation — is not automatically authorized to carry a firearm past a TSA checkpoint.
Officers who need to carry into the sterile area or onto an aircraft must follow a separate, parallel process. Airlines and airport operators work with TSA under frameworks that include the Law Enforcement Officer Flying Armed program. That program has its own notification requirements, documentation standards, and seat-assignment protocols. LEOSA does not substitute for those requirements.
Practical rule of thumb: LEOSA covers the terminal. TSA federal regulations cover everything past the checkpoint. These are two different legal frameworks, and both must be satisfied independently.