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New York State Approvals

Kentucky State Approvals

Maryland State Approvals

Connecticut State Approvals

Oklahoma State Approvals

Delaware State Approvals

Illinois State Approvals

Pennsylvania: Governed by EPA Region 3 

See all Federal EPA approval letters.

California: Governed by EPA Region 9 See all Federal EPA approval letters.

Minnesota State Approval follows NESHAP CFR 61.155.

Wisconsin follows NESHAP CFR 61.155 but requires an Air Permit.