any such limitation is not more stringent than the standards adopted by the International Civil Aviation Organization. . 302. Frequent and chronic flooding mitigation and adaptation infrastructure projects (a) In general The Secretary of Commerce and the Secretary of the Army (hereinafter referred to as the Secretaries ), in consultation with the Secretary of Homeland Security, may make grants to State and local governments and federally recognized Indian Tribes for frequent and chronic flooding mitigation and adaptation infrastructure projects. (b) Authorized uses Amounts provided as a grant under this section may be used for any of the following: (1) Adaptation of existing infrastructure to mitigate impacts of climate change, including enhancements to both built and natural environments. (2) Maintenance and updating of existing flood risk reduction infrastructure, such as gravity drainage structures, road elevation, bulkheads, gates, and floodwalls. (3) Increasing resilience to frequent and chronic flooding, including (as combined or separate projects)— (A) the creation of bulkheads, levees, and other hard infrastructure alone or in combination with natural infrastructure described in subparagraph (B)