; and (3) by inserting after paragraph (1) the following new paragraphs: (2) Interim reports Not later than each of December 1, 2019, and December 1, 2020, the Commission shall submit as described in that paragraph an interim report on the review required under subsection (b). (3) Final report Not later than March 1, 2021, the Commission shall submit as described in paragraph (1) a comprehensive final report on the review required under subsection (b). . H Other Matters 1084. National Commission on Military Aviation Safety (a) Extension of deadline for report Subsection (h)(2) of section 1087 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 ( Public Law 115–232 ) is amended by striking March 1, 2020 an inserting December 1, 2020 . (b) Secretary of Defense report Such section is further amended by adding at the end the following new subsection: (l) Report to Congress Not later than 120 days after the date of the submittal of the report under subsection (h)(2), the Secretary of Defense, in coordination with the Secretary of each of the military departments, shall submit to the Committees on Armed Services of the Senate and House of Representatives a report that includes each of the following: (1) An assessment of the findings and conclusions of the Commission. (2) The plan of the Secretaries for implementing the recommendations of the Commission. (3) Any other actions taken or planned by the Secretary of Defense or the Secretary of any of the military departments to improve military aviation safety. . (c) Authorization of appropriations In addition to any other amounts authorized to be appropriated for the National Commission on Military Aviation Safety established under section 1087 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 ( Public Law 115–232 ), of the amounts authorized to be appropriated for Operation and Maintenance, Defense-wide for fiscal year 2020, as specified in the funding table in section 4301, $3,000,000 shall be available for the