Massachusetts Tier II Reporting: Deadline, Filing Method & Fees

Facilities in Massachusetts storing hazardous chemicals above EPA reporting thresholds file an annual Tier II report through Massachusetts Hazconnect (SERC Tier II system). Register and submit the annual Tier II report directly through the Massachusetts Hazconnect system. No separate email to the SERC is required — the SERC receives the report through the Hazconnect submission itself..

Quick facts
Portal upload (.t2s)
Filing deadline
Mar 1 (federal baseline)
Accepts .t2s file
Yes
Filing fee
No fee
Portal
LEPC copy required?
No statewide standard — filer must contact their own Local/Regional Emergency Planning Committee (LEPC/REPC) directly to confirm the required submission format.
Fire dept copy required?
No statewide standard — filer must contact their local fire department directly to confirm the required submission format.
Routing details sourced from official Massachusetts and EPA documentation — confirm current guidance with Massachusetts’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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