; (6) trade associations representing air carriers and airports; and (7) such other stakeholders as the Secretary considers appropriate. (d) Report Not later than 30 days after the plan is developed under subsection (a), the Secretary shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report that includes such plan. (e) Review of plan Not later than 1 year after the date on which a report is submitted under subsection (d), and every year thereafter, the Secretary shall review the plan included in such report and make changes by rule as the Secretary considers appropriate. (f) GAO study Not later than 18 months after the date of enactment of this Act, the Comptroller General shall conduct and submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a study assessing the national aviation preparedness plan developed under subsection (a), including— (1) whether such plan— (A) is responsive to any previous recommendations relating to aviation preparedness with respect to an outbreak of a covered communicable disease or global health emergency made by the Comptroller General; and (B) meets the obligations of the United States under international conventions and treaties; and (2) the extent to which the United States aviation system is prepared to respond to an outbreak of a covered communicable disease. (g) Definitions In this section: (1) At-risk employee The term at-risk employee means— (A) an individual whose job duties require interaction with air carrier passengers on a regular and continuing basis and who is an employee of— (i) an air carrier; (ii) an air carrier contractor; (iii) an airport; or (iv) the Federal Government