; and (B) in subsection (b), by adding at the end the following new paragraph: (5) One of the Assistant Secretaries shall be the Assistant Secretary of the Navy for Energy and Climate Resiliency. The principal duty of the Assistant Secretary shall be the overall supervision of energy and climate resiliency matters of the Department of the Navy. . (3) Department of the Air Force Section 9016 of such title is amended— (A) in subsection (a), by striking four and inserting five ; and (B) in subsection (b), by adding at the end the following new paragraph: (5) One of the Assistant Secretaries shall be the Assistant Secretary of the Air Force for Energy and Climate Resiliency. The principal duty of the Assistant Secretary shall be the overall supervision of energy and climate resiliency matters of the Department of the Air Force. . (4) Duties Not later than 90 days after the date of the enactment of this Act, each Secretary of a military department shall prescribe the duties of the Assistant Secretary of such military department for energy and climate resiliency under the applicable amendments made by this subsection. In prescribing such duties, such Secretary shall— (A) specify the duties currently performed by the Assistant Secretary of such military department for installations, energy, and the environment that shall be performed instead by the Assistant Secretary of such military department for energy and climate resiliency