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Indiana Department of Environmental Management

Indiana Department of Environmental Management


IDEM Permit Guide

The Indiana Department of Environmental Management (IDEM) works to protect Hoosiers and our environment by helping Indiana businesses understand and meet their environmental responsibilities. The IDEM Permit Guide provides basic information about the approvals IDEM issues for the construction, expansion and operation of facilities that must manage air emissions, solid or hazardous waste, drinking water, wastewater and wetlands. It is intended to serve as a reference for business owners, business operators and members of the general public who wish to better understand the IDEM permitting requirements.

Always consult IDEM staff members for appropriate assistance. The guide isn’t designed as a stand-alone reference, nor should it be viewed as a summary of or substitution for Indiana’s environmental rules or statutes. Determinations about air permits, for example, require a thorough review of pertinent information by trained individuals.

Pre-application meetings are always advised, and permitting staff members are available for early coordination prior to construction projects. IDEM staff members are available to provide assistance concerning state and federal requirements for various activities. Confidential technical and compliance assistance is also available through IDEM’s Office of Pollution Prevention and Technical Assistance by calling (800) 988-7901.

The guide is organized under IDEM’s three regulatory divisions: the Office of Air Quality, the Office of Land Quality, and the Office of Water Quality. The guide should not be viewed as an interpretation of, or used as a substitution for federal or state environmental regulations.

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