A housing study of Mahoning and Trumbull counties recommends regional coordination to help modernize zoning codes to encourage development. Jim Kinnick, executive director of Eastgate Regional Council of Governments, said the agency plans to invite representatives from townships, cities and villages who deal with zoning to a meeting in early March to begin discussions. Eastgate is leading the recommendation from the housing study released earlier this month that dealt with zoning. It recommended regional coordination on zoning adjustments.