To establish relative priorities and avoid duplication and conflicts, the Department shall advise the Governor on the means and methods available to coordinate the capital plans and capital programs of all units of the State government. Upon request of the General Assembly, the Department shall provide assistance to the General Assembly in the development and coordination of capital plans and capital programs for the Legislative Branch of State government. To avoid duplication and conflicts, the Department shall advise the Governor on the means and methods available to coordinate the capital plans and capital programs of federal, State, regional, and local governments.