Airborne Collision Avoidance System Xa inhibit altitude

(a) In general Not later than 180 days after the date of enactment of this Act, the Administrator shall complete an evaluation of the hazards and safety benefits of decreasing the traffic advisory and resolution advisory inhibit altitudes in Airborne Collision Avoidance System Xa (hereinafter referred to as ACAS Xa) to enable improved alerting throughout more of the flight maneuvering envelope of an aircraft than is required under the RTCA minimum operational performance standards for the Airborne Collision Avoidance System (DO–385A, issued June 22, 2023). (b) Consultation In conducting the evaluation under subsection (a), the Administrator shall consult with representatives of the following: (1) Air carriers operating under part 121 of title 14, Code of Federal Regulations, including regional air carriers and air carriers with a low-cost or ultra-low-cost business model. (2) Air carriers operating under part 135 of title 14, Code of Federal Regulations. (3) Air carriers operating under part 91 of title 14, Code of Federal Regulations. (4) Cargo air carriers. (5) Transport category aircraft manufacturers. (6) General aviation aircraft manufactures. (7) Avionics manufacturers. (8) Exclusive bargaining representatives of air traffic controllers certified under section 7111 of title 5, United States Code. (9) Organizations representing certified collective bargaining representatives of airline pilots. (10) The certified bargaining representative of aviation safety inspectors and engineers for the Federal Aviation Administration. (11) Aviation safety experts with specific knowledge of human factors or human factors experts with specific knowledge of aviation safety. (12) Research institutions with relevant aviation safety or human factors subject matter expertise. (13) The National Transportation Safety Board. (14) Any other stakeholders the Administrator determines appropriate. (c) Considerations In conducting the evaluation under subsection (a), the Administrator shall consider, at a minimum— (1) safety benefits to the public, including reductions in the probability of midair and near-midair collisions; (2) the benefits and risks to the ability of pilots and air traffic controllers to ensure operational safety; (3) false, misleading, or potentially overlapping alerts or resolution advisories; (4) technological advances in software logic to limit nuisance or false alerts; (5) air traffic control procedures and the impact of such procedures on pilots and air traffic controllers during critical phases of flight; (6) training requirements for pilots and air traffic controllers; (7) to the greatest extent practicable, human factors, including products by working groups related to human factors in aviation safety; (8) research and simulations of reduced resolution advisory inhibit altitudes conducted by the National Transportation Safety Board pursuant to Aviation Investigation Report AIR–26–02 adopted on January 27, 2026; and (9) any other considerations the Administrator determines appropriate.

(a) In general Not later than 180 days after the date of enactment of this Act, the Administrator shall complete an evaluation of the hazards and safety benefits of decreasing the traffic advisory and resolution advisory inhibit altitudes in Airborne Collision Avoidance System Xa (hereinafter referred to as ACAS Xa) to enable improved alerting throughout more of the flight maneuvering envelope of an aircraft than is required under the RTCA minimum operational performance standards for the Airborne Collision Avoidance System (DO–385A, issued June 22, 2023). (b) Consultation In conducting the evaluation under subsection (a), the Administrator shall consult with representatives of the following: (1) Air carriers operating under part 121 of title 14, Code of Federal Regulations, including regional air carriers and air carriers with a low-cost or ultra-low-cost business model. (2) Air carriers operating under part 135 of title 14, Code of Federal Regulations. (3) Air carriers operating under part 91 of title 14, Code of Federal Regulations. (4) Cargo air carriers. (5) Transport category aircraft manufacturers. (6) General aviation aircraft manufactures. (7) Avionics manufacturers. (8) Exclusive bargaining representatives of air traffic controllers certified under section 7111 of title 5, United States Code. (9) Organizations representing certified collective bargaining representatives of airline pilots. (10) The certified bargaining representative of aviation safety inspectors and engineers for the Federal Aviation Administration. (11) Aviation safety experts with specific knowledge of human factors or human factors experts with specific knowledge of aviation safety. (12) Research institutions with relevant aviation safety or human factors subject matter expertise. (13) The National Transportation Safety Board. (14) Any other stakeholders the Administrator determines appropriate. (c) Considerations In conducting the evaluation under subsection (a), the Administrator shall consider, at a minimum— (1) safety benefits to the public, including reductions in the probability of midair and near-midair collisions; (2) the benefits and risks to the ability of pilots and air traffic controllers to ensure operational safety; (3) false, misleading, or potentially overlapping alerts or resolution advisories; (4) technological advances in software logic to limit nuisance or false alerts; (5) air traffic control procedures and the impact of such procedures on pilots and air traffic controllers during critical phases of flight; (6) training requirements for pilots and air traffic controllers; (7) to the greatest extent practicable, human factors, including products by working groups related to human factors in aviation safety; (8) research and simulations of reduced resolution advisory inhibit altitudes conducted by the National Transportation Safety Board pursuant to Aviation Investigation Report AIR–26–02 adopted on January 27, 2026; and (9) any other considerations the Administrator determines appropriate.