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 1-year study on the health and safety impacts, with respect to passengers and crewmembers during each season in which the study is conducted, of the temperature of a covered aircraft cabin falling outside of a temperature between 65 and 85 degrees Fahrenheit during all phases of flight operation. (2) Consultation In conducting the study required by paragraph (1), the National Academies shall consult with the FAA Civil Aerospace Medical Institute, air carriers operating under part 121 of title 14, Code of Federal Regulations, and applicable aviation labor organizations. (3) Flight definition For purposes of paragraph (1), the term flight operation means the period beginning on the moment an individual boards the covered aircraft with the intention of work and duty related to the flight until such time as all such individuals have disembarked from the covered aircraft. (b) Reports (1) To the Administrator Not later than 180 days after the date on which the study under subsection (a) is completed, the National Academies shall submit to the Administrator a report on the results of such study, together with recommendations determined appropriate by the National Academies. (2) To Congress Not later than 60 days after the date on which the National Academies submits the report under paragraph (1), the Administrator shall submit to the appropriate committees of Congress a report describing the results of the study required by subsection (a), together with recommendations for further action deemed appropriate by the Administrator. (c) Definition of covered aircraft For purposes of this section, the term covered aircraft means an aircraft operated under part 121 of title 14, Code of Federal Regulations. 341. Part 135 pilot supplemental oxygen requirement Not later than 1 year after the date of enactment of this section, the