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Indiana Department of Natural Resources

Water > Regulatory Permit Programs and Related Information Regulatory Permit Programs and Related Information

The IDNR Division of Water regulatory webpage provide a comprehensive one-stop site for permitting information. Simply click on a particular category below for links to forms, instructions, and informational resources. Several instructional videos are now available that provides important information to assist you in completing a permit application, fulfilling the public notice requirements, and providing the supporting technical documentation that is necessary in the application review process. In addition, technical worksheets have been developed for the agents who are submitting Construction in a Floodway applications.

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Use a Permit Application Form or File an Application Online
Technical Requirements: Minimum Application Submittal for Construction in a Floodway
GIS Resources
Floodway Habitat Mitigation Guidelines
Public Notice Requirements
Other Permit-Related Resources and Information
Regulatory Permit Statutes, Rules and Related Information Links