; and (2) by inserting after subsection (a) the following new subsection (b): (b) Technologies for greenhouse gas emissions and noise emissions reduction (1) Initiative required The Administrator shall establish an initiative to build upon and accelerate previous or ongoing work to develop and demonstrate new technologies, including systems architecture, components, or integration of systems and airframe structures, in aircraft concepts that are capable of reducing both greenhouse gas emissions and noise emissions from aircraft by at least 50 percent compared to the highest-performing aircraft technologies in service as of December 31, 2019, with the goal of deploying new technologies developed pursuant to the initiative on regional transport aircraft intended to enter into service by 2030 and on single-aisle aircraft designed to accommodate more than 125 passengers intended to enter into service by 2040. (2) Approach In carrying out the initiative, the Administrator shall do the following: (A) Continue and expand work of the Administration on research, development, and demonstration of aircraft concepts described in paragraph (1), and the integration of related advanced technologies and concepts, with the goal of carrying out test flights by 2025. (B) To the extent practicable, work with multiple partner organizations, including current commercial production aircraft providers and small businesses and new entrants, on research and development activities related to both regional transport aircraft and aircraft designed to accommodate more than 125 passengers in order to achieve an industry-wide shift towards aircraft concepts for the reduction of greenhouse gas emissions and noise emissions. (C) Provide guidance to the Federal Aviation Administration (FAA) on technologies developed and tested pursuant to the initiative in order to assist the work of the Federal Aviation Administration to identify new requirements for policy, infrastructure, and administrative capacity necessary to enable the safe deployment of