; (D) the primary reasons and best ways to reduce wait times described in subparagraph (C); (E) the number of tests conducted by designated pilot examiners; (F) the number and percentage of available designated pilot examiners that perform such tests; and (G) the average rate of retests, including of both written and practical tests. 834. Part 135 pilot supplemental oxygen requirement (a) In general Not later than 1 year after the date of enactment of this Act, the Administrator shall issue a notice of proposed rulemaking concerning whether to revise the requirements under paragraphs (3) and (4) of section 135.89(b) of title 14, Code of Federal Regulations, to apply only to aircraft operating at altitudes above flight level 410. (b) Considerations In issuing the notice of proposed rulemaking, the Administrator shall consider applicable safety data and risks, including in relation to applicable incidents and accidents, as well as the investigations and recommendations of the National Transportation Safety Board. IX New Entrants and Aerospace Innovation A Unmanned Aircraft Systems 901. Definitions Except as otherwise provided, the definitions contained in section 44801 of title 49, United States Code, apply to this subtitle. 902. Unmanned aircraft in the Arctic (a) In general Section 44804 of title 49, United States Code, is amended— (1) in the section heading by striking Small unmanned and inserting Unmanned ; and (2) by striking small each place it appears. (b) Conforming amendment The analysis for chapter 448 of such title is amended by striking the item relating to section 44804 and inserting the following: 44804. Unmanned aircraft in the Arctic. . 903. Small UAS safety standards technical corrections Section 44805 of title 49, United States Code, is amended— (1) in the section heading by striking Small Unmanned and inserting Small unmanned ; (2) in subsection (a)(2) by striking operation of small and inserting operation of a small ; (3) in subsection (f) by striking subsection (h) and inserting subsection (f)