Connecticut Tier II Reporting: Deadline, Filing Method & Fees

Facilities in Connecticut storing hazardous chemicals above EPA reporting thresholds file an annual Tier II report through CT DEEP Hazconnect (Tier II Manager). Register and submit via CT DEEP's Hazconnect Tier II Manager portal (preferred). CT DEEP will also accept .t2s files emailed to DEEP.CTEPCRA@ct.gov, but only if unique circumstances prevent use of Hazconnect..

Quick facts
Portal upload (.t2s)
Filing deadline
Mar 1 (federal baseline)
Accepts .t2s file
Yes
Filing fee
Per-chemical fee — check CT SERC for current rate
Portal
SERC email
LEPC copy required?
Facilities must submit directly to their Local Emergency Planning Committee, with Site Plan and SDS attachments -- Hazconnect pre-populates the correct LEPC contact for convenience, but does not submit on the facility's behalf.
Fire dept copy required?
Facilities must submit directly to their local fire department, with Site Plan and SDS attachments -- Hazconnect pre-populates a selection of town-specific fire department contacts for convenience, but does not submit on the facility's behalf.
Routing details sourced from official Connecticut and EPA documentation — confirm current guidance with Connecticut’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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