Sec. 4. One (1) or more municipalities (meeting the population, proximity, and ordinance requirements under section 9 of this chapter) and one (1) or more counties may cooperatively establish single and unified planning and zoning entities as joint districts to carry out this chapter on a less than countywide basis.
As added by P.L.300-1989, SEC.2. Amended by P.L.1-1990, SEC.361.