Code of Federal Regulations Title 40. Protection of Environment § 40.40.115–4 Municipality

(a) Under the Federal Water Pollution Control Act, a city, town, borough, county, parish, district, association, or other public body created by or pursuant to State law, or an Indian tribe or an authorized Indian tribal organization, with jurisdiction over disposal of sewage, industrial wastes, or other wastes;  or a designated and approved management agency under section 208 of the act.

(b) Under the Resource Conservation and Recovery Act, a city, town, borough, county, parish, district, or other public body created by or pursuant to State law, with responsibility for the planning or administration of solid waste management, or an Indian tribe or authorized tribal organization or Alaska Native village or organization, and any rural community or unincorporated town or village or any other public entity for which an application for assistance is made by a State or political subdivision thereof.

(c) In all other cases, a city, town, borough, county, parish, district, or other public body created by or pursuant to State law, or an Indian tribe or an authorized Indian tribal organization, having substantial powers or duties pertaining to the control of pollution.