; (4) the use of existing real property inventories or any components of any cadastre currently conducted by any unit of State or local government that can be used to identify Federal real property within such unit of government; (5) the cost-savings that will be achieved by eliminating or consolidating duplicative or unneeded real property inventories or any components of a cadastre currently authorized by law or conducted by the Department of the Interior that will become part of the multipurpose cadastre authorized by this Act, and a plan for implementation of this Act, including a cost estimate and the feasibility of the use of revenue from any transactional activity authorized by law that may be used to offset any costs of implementing this Act; (6) in consultation with the Director of the Office of Management and Budget, the Administrator of the General Services Administration, and the Comptroller General of the United States, conduct the assessment required by paragraphs (1) through (5) of this subsection with regard to all cadastres and inventories authorized, operated or maintained by all other Executive agencies of the Federal Government; and (7) recommendations for any legislation necessary to increase the cost-savings and enhance the effectiveness and efficiency of replacing, eliminating, or consolidating real property inventories or any components of a cadastre currently authorized by law or conducted by the Department of the Interior. (d) Coordination (1) In general In carrying out this section, the Secretary shall— (A) participate, pursuant to section 216 of Public Law 107–347 , in the establishment of such standards and common protocols as are necessary to assure the interoperability of geospatial information pertaining to the cadastre for all users of such information