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Indiana Department of Environmental Management


The Compliance Technical Assistance Program (CTAP) is your one-stop shop for environmental regulatory compliance needs. Staff with experience in all environmental programs are ready to provide technical and confidential compliance assistance on a wide array of environmental topics.

Upcoming Compliance Due Dates

  • April 1:
    • Annual Report due for delegated and non-delegated water Pretreatment Programs.
  • April 15:
    • Air Annual Compliance Certification due for companies in Clark, Elkhart, Floyd, Lake, Marion, Porter, St. Joseph, and Vanderburgh counties.
    • Solid Waste Quarterly Reports due.
    • MSOP Air Permit annual fees are due 30 days after the invoice is generated. All invoices are generated by the 15th of the previous month.
    • Solid Waste Management Fee Return has been combined with the Solid Waste disposal fee and is due quarterly (January 15, April 15, July 15, October 15). Forms will be mailed to applicable parties per the reporting schedule.
  • April 28:
    • Quarterly Non-Compliance Report due for delegated water Pretreatment Programs (unless otherwise permitted to submit report in May).
  • April 30:
    • Air Quarterly Deviation and Compliance Monitoring Report, due for January through March. Check your permit to determine if you are on a quarterly or semi-annual reporting schedule.
    • Quarterly Air Permit reports (e.g., usage reports) due for January through March.
  • May 15:
    • Underground Storage Tank (UST) fee is due. If the UST owner fee is more than $500 then can elect to submit the first payment due of the fee in four installments.
  • May 28:
    • Quarterly Non-Compliance Report due for those delegated water Pretreatment Programs allowed to submit in May (otherwise due in April).

Additional Compliance Information:

Featured Topics

Top Five Common Violations for Underground Storage Tank (UST) Facilities:

The top five common violations for petroleum Underground Storage Tank (UST) facilities in 2016 involved failure to provide leak detection for USTs, failure to have Financial Responsibility, failure to submit notification for USTs to IDEM, failure to maintain proper release detection methods for piping and failure to provide proof of Financial Responsibility. In addition, an UST owner or operator needs to maintain accurate and current records and be able to produce these records upon IDEM request. Following are Indiana Administrative Code (IAC) citations for each requirement and the Indiana Department of Environmental Management’s (IDEM’s) recommendations for avoiding these common environmental violations [PDF].

Additional Featured Topics

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