; (ii) an increase or change in flight operations due to adoption of new flight procedures; (iii) high frequency or an increase in night time aircraft noise; and (iv) decreased dispersion of flight path utilization; and (C) developing a scientifically based strategy for evaluating structures subject to increases described in subparagraph (A)(ii) that should be eligible for noise mitigation. (2) Requirement In developing the framework and diagnostic tool under paragraph (1), the National Academy of Sciences shall— (A) seek appropriate community input and feedback from community boards as well as open community meetings; and (B) ensure, to the extent practicable, that such framework and diagnostic tool is understandable to, and useable by, the community boards and the general public. 4. Designating of communities (a) Outreach (1) In general Not later than 90 days after the date of enactment of this Act, the Administrator shall conduct outreach to State, regional, and local elected officials of aviation-impacted communities to inform them of the opportunity to be a designated community. (2) Requirements The outreach described in paragraph (1) shall— (A) be conducted in local print and electronic media (including social media, local foreign language media, ethnic radio, newspapers, and television); and (B) reflect languages regularly encountered in the aviation-impacted community in any signs, materials, and multimedia resources. (b) Request The State, regional, or local elected officials (or designee thereof) of an aviation-impacted community may request to be a designated community, and the Administrator shall— (1) recognize such community as a designated community upon request