; (2) explore options for performance portability of the optimized weather model codes between the operational computing systems of the National Oceanic and Atmospheric Administration and the Department’s high performance computers; (3) develop methods to accommodate large data sets of weather and climate information; (4) to the maximum extent practicable, and in compliance with national security policies, promote collaboration, open community-based development, and data sharing between Federal agencies, National Laboratories, institutions of higher education, nonprofit institutions, and other appropriate entities by providing the necessary access and secure data transfer capabilities; and (5) support maintenance of and improvements to scientific computing infrastructure that the Secretary and Administrator determine appropriate. (d) Coordination In carrying out the activities under subsection (a), the Secretary and Administrator are authorized to— (1) carry out reimbursable agreements between the Department, the National Oceanic and Atmospheric Administration, and other entities in order to maximize the effectiveness of research and development