Illinois Tier II Reporting: Deadline, Filing Method & Fees

Facilities in Illinois storing hazardous chemicals above EPA reporting thresholds file an annual Tier II report through Tier II Manager (IEMA). Log in to IEMA Tier II Manager — .t2s not accepted.

Quick facts
Manual portal entry
Filing deadline
Mar 1 (federal baseline)
Accepts .t2s file
No — manual entry
Filing fee
No fee
Portal
LEPC copy required?
Not routed by IEMA -- after completing the Hazconnect submission, the facility must print, sign, and submit the report (plus site plans and SDS) directly to their own LEPC.
Fire dept copy required?
Not routed by IEMA -- after completing the Hazconnect submission, the facility must print, sign, and submit the report (plus site plans and SDS) directly to their own local fire department.
Routing details sourced from official Illinois and EPA documentation — confirm current guidance with Illinois’s agency before submitting, as requirements can change.
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Related reading
Do I need to file Tier II? A simple facility checklistUnderstanding Tier II reporting thresholdsManaging Tier II for multiple clients? See our founding consultant program
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