(28) "Public body" means an agency, authority, board, commission, instrumentality, or similar entity which is part of or connected with the government or political subdivision referred to in the context.

(15) "Public body" means the state or any municipality, county, board, commission, authority, district, housing authority, urban redevelopment agency, or other subdivision or public body of the state.

"Public body" means not only the state, municipalities, counties, school districts, drainage districts, and other districts created for special purposes, but also every other political subdivision of the state and every board, bureau, commission, and department [...]