Public agency means any:

(1) County, city, or village; school, drainage, tax, improvement, or other district; local or regional housing agency; department, division, or political subdivision of this state or another state; housing agency or housing trust of this state or another state; and other agency, bureau, office, authority, or instrumentality of this state or another state;

(2) Board, agency, commission, division, or other instrumentality of a city, village, or county; and

(3) Board, commission, agency, department, or other instrumentality of the United States, or any political subdivision or governmental unit thereof, and in each case, any affiliates thereof.