; or (B) if airport operations increase substantially above of projected increases. (g) Instrumentation Upon request of a community board, the Administrator shall provide additional noise measurement instrumentation to measure aircraft noise. (h) Collaboration The Administrator and each community board that petitions for a community assessment shall collaborate on the scope of such community assessment. (i) Regional assessment Upon the request and approval of not less than 2 community boards located in the same region, the FAA may conduct a regional assessment based on the framework and diagnostic tool established by the National Academy of Sciences under section 3. (j) Accessible format The Administrator shall ensure the community assessment is culturally and linguistically accessible given the needs or requests of the community. 6. Action plans (a) In general Not later than 6 months after the date of completion of a community assessment described in section 5(f), the Administrator shall, in collaboration with community boards, devise an action plan that seeks to alleviate or address the concerns raised in such community reports or such community assessments. (b) Content An action plan shall— (1) include a long-term regional plan that focuses on reducing and minimizing aviation impacts for the designated community or communities, including sound insulation or other noise mitigation infrastructure, air filtration systems, and changes in flight paths or procedures