; (2) communication of maintenance progress and resolution with individuals responsible for the management of the covered military unaccompanied housing and the residents of such housing; and (3) standardized performance metrics, such as the timeliness of completion of maintenance work orders. (c) Administration The Secretary of each military department shall administer the process for maintenance work order management required under subsection (a) for the military department under the jurisdiction of such Secretary and shall issue or update relevant guidance as necessary. (d) Covered military unaccompanied housing defined In this section, the term covered military unaccompanied housing has the meaning given in section 2856 of title 10, United States Code (as amended by section 2831). 2838. Uniform index for evaluating the condition of covered military unaccompanied housing facilities (a) In general Not later than 30 days after the date of the enactment of this Act, the Secretary of Defense, acting through the Assistant Secretary of Defense for Energy, Installations, and Environment, shall establish a uniform index for evaluating the condition of covered military unaccompanied housing facilities— (1) that exist as of the date of the enactment of this Act