This legislation requires the Administrator of the Federal Aviation Administration (FAA) to develop and submit an action plan to Congress within 180 days of enactment. The primary purpose of this plan is to advance the deployment of the Airborne Collision Avoidance System-X (ACAS-X) , including its various forms like ACAS-Xa and ACAS-Xr, or any successor technology, within the national airspace system. The FAA Administrator must also publish this action plan publicly within 10 days of its submission to Congress. The action plan's contents are comprehensive, requiring a strategic roadmap for widespread adoption, identification of necessary research, development, testing, and funding for certification, and plans for extensive stakeholder engagement with groups such as aircraft operators, manufacturers, and pilot organizations. It also mandates engagement with foreign civil aviation authorities to harmonize international standards, considers interoperability with ADS-B systems, and assesses safety benefits. Furthermore, the Administrator must brief Congress on the plan's contents and prospective implementation actions within 30 days of its submission.