Arkansas Tier II Reporting: Deadline, Filing Method & Fees

Facilities in Arkansas storing hazardous chemicals above EPA reporting thresholds file an annual Tier II report through Arkansas HazConnect. Submit electronically through the Arkansas HazConnect portal — .t2s/Tier2 Submit email is no longer accepted.

Quick facts
Manual portal entry
Filing deadline
Mar 1 (federal baseline)
Accepts .t2s file
No, manual entry
Filing fee
2025 reporting year, confirmed against ADEM's own current page: $50 for the first reportable chemical, $10 each additional, $1,000 max per facility. Government facilities: no fee, but reporting still mandatory. Oil/gas leases recorded with the Oil and Gas Commission are each treated as a separate facility requiring their own $200 fee.
Portal
LEPC copy required?
Handled by ADEM via HazConnect distribution — ADEM distributes submitted reports to LEPCs statewide, no separate local filing required.
Fire dept copy required?
Handled by ADEM via HazConnect distribution — ADEM distributes submitted reports to fire departments statewide, no separate local filing required.
Routing details sourced from official Arkansas and EPA documentation. Confirm current guidance with Arkansas’s agency before submitting, as requirements can change.
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Arkansas
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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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