On May 7, 2026, the Board issued an opinion and order proposing second-notice amendments to update its Part 219 air pollution rules (35 Ill. Adm. Code 219). The proposed amendments concern volatile organic material (VOM) emissions from aerospace facilities in the Metro East counties of Madison, Monroe, and St. Clair. The Joint Committee on Administrative Rules has placed these Part 219 amendments on the agenda for its June 16, 2026 meeting
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