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IDEM > Compliance > CTAP: Compliance and Technical Assistance Program > CTAP Staff CTAP Staff

We are available weekdays to answer your questions or to schedule a consultation. Our main line is (800) 988-7901 (in-state only) or (317) 232-8172. Or, if you prefer to speak with a CTAP staff in your area of the state, please call the appropriate office listed below.

Downloadable CTAP Regions Map [PDF]

  • Northwest Indiana (Lake, LaPorte, and Porter counties): (888) 209-8892
  • Northern Indiana (Dekalb, Elkhart, Fulton, Kosciusko, LaGrange, Marshall, Noble, Starke, Steuben, and St. Joseph counties): (800) 753-5519 ext. 4879
  • Southwest and Southern Indiana (Crawford, Daviess, Dubois, Gibson, Knox, Martin, Orange, Perry, Pike, Posey, Spencer, Vanderburgh, Clark, Floyd, Harrison, Jefferson, Scott, Switzerland, Washington and Warrick counties): (888) 672-8323
  • Central Indiana (all remaining counties not indicated above): (800) 988-7901