; and (3) ensure other tasks carried out by the Working Group are addressed and completed in a timely and efficient manner. B FAA Workforce 521. Air traffic control staffing standards (a) FAA air traffic control staffing standards The Administrator shall complete the requirements of subsection (b) and implement revisions to the FAA Certified Professional Controller (in this section referred to as CPC ) operational staffing targets, in consultation with appropriate stakeholders including the exclusive bargaining representative of air traffic control specialists of the FAA certified under section 7111 of title 5, United States Code, by September 30, 2024. (b) National Academy of Sciences study (1) Study Not later than 30 days after the date of enactment of this section, the Administrator shall enter into appropriate arrangements with the National Academies of Sciences, Engineering, and Medicine (in this subsection referred to as the National Academies ) under which the National Academies will conduct a study of the methodology used by the Collaborative Resource Workgroup (in this subsection referred to as CRWG ) to determine CPC operational staffing targets needed to meet facility operational, statutory, and contractual requirements, including resources to develop, evaluate, and implement processes and initiatives affecting the national airspace system. (2) Contents The study required by paragraph (1) shall include the following elements: (A) A review of similarities and discrepancies between methodologies used to develop the CRWG CPC operational staffing targets and the staffing targets developed by the FAA as reflected by the staffing standards used in the 2023 Controller Workforce Plan. (B) An examination of the discrepancies between the CRWG CPC staffing targets and the FAA-developed CPC staffing standards used in the 2023 Controller Workforce Plan that contribute to a significant divergence in operational staffing headcounts (including with respect to CPCs, CPCs-in-training at new facilities, and trainees),