IL SB3963

Amends the Illinois Environmental Protection Act to add definitions for anaerobic digestion, biogas, digestate, food waste, organic material, and organic waste while updating definitions for compost and composting

Creates exemptions from pollution control facility requirements for composting and anaerobic digestion operations that meet specified siting, setback, floodplain, and operational standards

Establishes permitting requirements for organic waste composting operations and anaerobic digesters, with exemptions for small-scale operations (under 30,000 cubic yards of livestock waste) and certain farm-based composting that meet volume limits and environmental safeguards

Requires setbacks of at least 200 feet from potable water wells and one-eighth mile from residences, schools, childcare facilities, and healthcare facilities for non-enclosed composting operations

Authorizes the Illinois EPA and Pollution Control Board to adopt performance standards for organic waste compost facilities and testing procedures for end-product compost, with a Technical Advisory Committee including balanced stakeholder representation