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Compliance and 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

  • August 28:
    • Quarterly Non-Compliance Report due for those delegated water Pretreatment Programs allowed to submit in August (otherwise due in July).
  • September 15:
    • Third quarter payment due for NPDES Annual Bill, if paying in quarterly installments.
  • September 28:
    • Annual Green House Gas Reports are due to U.S. EPA if your facility is part of the 41 source categories in 40 CFR 98 (otherwise the report is due March 31)
      • Note: There is no need to submit the GHG Report to IDEM.

Complete List of Compliance Due Dates

Featured Topics

IDEM Offers Indiana Certified Wastewater Operators the Opportunity to Earn Four Technical Contact Hours

IDEM is offering an incentive of four technical contact hours toward the renewal of Indiana certified Wastewater Operator licenses for those who have not yet submitted their DMRs utilizing the NetDMR application and who enroll and successfully submit a DMR including the MMR/MRO utilizing NetDMR prior to December 31, 2014. This incentive is available once per operator and once per permit.

The U.S. EPA has proposed a new federal rule, the NPDES Electronic Reporting Rule, which will require all NPDES permit holders to submit/report NPDES compliance information electronically. This is an opportunity to start utilizing NetDMR and gain the incentive before it is federally mandated.

IDEM’s NetDMR webpage specifies more detailed information regarding the NetDMR tool and how to start utilizing it.

Boiler Compliance Requirements Webpage Now Available!

The Indiana Department of Environmental Management (IDEM) now offers an informative Boiler Compliance Requirements webpage pertaining to area source boilers (40 CFR 63, Subpart JJJJJJ) and major sources boilers (40 CFR 63, Subpart DDDDD) to assist with coming into compliance with the Boiler MACT.

A major source is defined as a plant site emitting or having the potential to emit (PTE) any single hazardous air pollutant (HAP) at a rate of ten (10) tons or more per year or any combination of HAPs at a rate of 25 tons or more per year. An area source of HAP emissions is any source that emits less than the major source threshold for HAP emissions.

Free Reciprocating Internal Combustion Engines Webinar Available

The U.S. Environmental Protection Agency (U.S. EPA) is offering a free Reciprocating Internal Combustion Engines (RICE) Webinar regarding the engines application to combined heat and power (CHP) on Tuesday, June 24, 2014 from 1:00 PM until 3:00 PM. Further information and registration for the webinar can be found on the U.S. EPA’s Air Quality Rules for RICE and Their Application to CHP webpage.

The U.S. EPA has issued air quality regulations for RICE placing requirements on manufacturers, owners, and operators of a wide variety of emergency and non-emergency stationary engines including CHP systems having a gas-fired reciprocating engine as the prime mover. Depending on the engine type, CHP system owners and operators may need to meet operating and maintenance requirements, install controls, or conduct a performance test.

What Type of Solvent(s) Does Your Business Use?

Are you familiar with the solvent(s) being utilized within your cold cleaner degreaser operation?

Starting January 1, 2015, all persons who sell or purchase solvents for use in a cold cleaner degreaser operation will be required to keep the records specified within 326 IAC 8-3-8(c) including the true vapor pressure of the solvent. (The true vapor pressure is defined as “the equilibrium pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute Bulletin 2517, “Evaporation Loss from Floating Roof Tanks,” 1962.”) A purchasing invoice or a copy of the manufacturer’s recommendation for the solvents utilized may include most of the required records.

In addition to speaking with Compliance and Technical Assistance Program (CTAP) staff, you may also visit the newly created Degreasing Operations webpage, for information on how to comply with state and federal regulations concerning degreasing, as well as tips to consider when evaluating solvent alternatives.