; (2) to promote local leadership by encouraging communities to develop innovative solutions that reflect the unique economic assets and needs of the communities; (3) to maximize returns on Federal funding of housing, transportation, and environmental infrastructure and resiliency projects through the coordination of Federal grant programs and improving the efficiency and effectiveness of programs and policies of the Department of Housing and Urban Development, the Department of Transportation, the Environmental Protection Agency, and other Federal agencies, as appropriate; (4) to ensure that Federal funding supports locally defined long range development goals; (5) to make investments in housing, transportation, environmental, and resiliency projects in and for the benefit of historically disadvantaged or underserved minority and low-income communities; (6) to support a Federal initiative to support healthy housing and reduce the prevalence and severity of housing-related health hazards; and (7) to support the efforts of local communities to address the impact of climate change, including increased resilience to extreme weather events. 4. Definitions In this Act: (1) Affordable housing The term affordable housing means housing, the cost of which does not exceed 30 percent of the income of low-, very low-, and extremely low-income families. (2) Comprehensive regional plan The term comprehensive regional plan means a plan that— (A) uses a cooperative, locally controlled, and inclusive public engagement process to identify needs and goals across a region and to integrate related planning processes; (B) prioritizes projects for implementation, including healthy housing projects