EPA uses the definition of local government in 2 CFR 200.1 as indicated in Section III.A.2 of the NOFO. Refer to that coverage for examples of local governments. 

Please note that Regional Planning Councils or similar regional entities may qualify as a local government, but such applicants would need to document eligibility by securing an opinion from the Chief Legal Officer of the regional entity or the equivalent citing the specific state statute or local ordinance that establishes that the Regional Planning Council or other regional entity qualifies under Item 9 or 13 of the 2 CFR 200.1 definition of local government.