Chicago Urban Agriculture zoning info:

Chicago Metropolitan Agency for Planning (CMAP) "GO TO 2040" Sustainable Local Food Policy Recommendations:
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CMAP GO TO 2040 General Information:

Composting Rules in Chicago and Illinois
Chicago's composting rules are largely based on statewide urban composting regulations, which were revised in 2013 to allow for urban farms and community gardens to accept compostable materials generated offsite. AUA, the Illinois Environmental Council, the Chicago Food Policy Action Council, and others worked with the City to pass amendments to Chicago's composting ordinance in July 2015. Along with allowing urban farms and community gardens to compost organic waste generated offsite, the ordinance permits qualifying urban farms to sell finished compost, and substantially reduces permit fees for larger scale composting operations at urban farms and nonprofit composting facilities.