; (D) any degree to which that expansion facilitated dispersal of the agency workforce around the Nation; and (E) any other impacts of that expansion that the agency or the Director considers appropriate; (2) any agency plan to expand telework policies, practices, or levels beyond those in place as a result of section 2; and (3) a certification by the Director that such plan will— (A) have a substantial positive effect on— (i) the performance of the agency’s mission, including the performance of customer service; (ii) increasing the level of dispersal of agency personnel throughout the Nation; and (iii) the reversal of any adverse impact set forth pursuant to paragraph (1)(D); (B) substantially lower the agency’s costs of owning, leasing, or maintaining real property; (C) substantially lower the agency’s costs attributable to paying locality pay to agency personnel working from locations outside the pay locality of their position’s official worksite; and (D) ensure that teleworking employees will be provided with secure network capacity, communications tools, necessary and secure access to appropriate agency data assets and Federal records, and equipment sufficient to enable each such employee to be fully productive, without substantially increasing the agency’s overall costs for secure network capacity, communications tools, and equipment. (b) Limitation (1) In general An agency may not implement the plan submitted under subsection (a)(2) unless a certification by the Director was issued under subsection (a)(3). (2) Subsequent plans In the event an initial agency plan submitted under subsection (a)(2) fails to receive such certification, the agency may submit to the Director subsequent plans until such certification is received, and submit such plan and certification to Congress. (c) Definitions In this Act— (1) the term agency has the meaning given the term Executive agency in section 105 of title 5, United States Code; (2) the term Director means the Director of the Office of Personnel Management