US Army Corps of Engineers
Louisville District Website



Wetland in Henderson County, Kentucky. Photo by Tre Barron

Welcome to the U.S. Army Corps of Engineers, Louisville District, Regulatory Division Home Page.

The Regulatory Division of the U.S. Army Corps of Engineers Louisville District is responsible for administering the Regulatory Program in the majority of Indiana and Kentucky, the southeastern portion of Illinois, and the Ohio River to southwestern Ohio. The Regulatory Division evaluates permit applications for essentially all work that occurs in “waters of the United States (U.S.)” that are regulated by the Corps pursuant to Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Some examples of areas that may be within the jurisdiction of the Corps include marshes, swamps, streams, creeks, rivers, ponds, lakes, seasonally saturated forested and non-forested wetlands.

All regulated activities occurring within jurisdictional areas require a permit from the Corps. Some example activities occurring within jurisdictional areas that require a permit include dredging of waterways, bank stabilization, recreational ponds and lakes, as well as the construction of piers, docks, marinas, fleeting areas, boat ramps, roads, residential and commercial developments, utility lines, and mining activities.

In order to determine whether your proposed activity requires a permit, or whether any “waters of the U.S.” are located on your property or within your project area, please explore our website or contact us for further guidance. Please note that the Louisville District Corps of Engineers will make the final determination of whether an area is a jurisdictional “water of the U.S.” and whether the activity requires a permit.

We are dedicated to providing strong protection of the Nation’s aquatic environment, including wetlands, to enhancing the efficiency of the Corps administration of its regulatory program, and to ensuring that the Corps provides the regulated public with fair and reasonable decisions.

To the left of this webpage are links to what the Regulatory Division does, regulations, technical resources, and other information to help with your permitting needs. To accurately read and use the PDF files found throughout this site, we recommend that you download a copy of Adobe Acrobat Reader 8.0 or higher.

Additionally, by clicking on the "Contact us" link to the left of this webpage,  you will find the Louisville District boundary map and the telephone numbers associated with each branch of the Regulatory Division.  Please utilize the map to assist you in establishing the appropriate section of the Regulatory Division to contact.

News & Updates

13 March 2020
LRL Public Notice Coronavirus Regulatory Office Closure to the Public 

LRL Public Notice Coronavirus Electronic Business Process

12 September 2019 - Special Public Notice - Clean Water Act Final Rule Repealing the 2015 Clean Water Rule and Re-Codifying the Previous Definition of the "Waters of the United States" 

23 August 2019 - This notice announces that on August 23, 2019, the Louisville, Nashville, Memphis and Huntington Districts of the U.S. Army Corps of Engineers (Districts), in accordance with 33 C.F.R 332, “Compensatory Mitigation for Losses of Aquatic Resources” (Mitigation Rule), issued resource-based, predefined service areas for third party mitigation within Kentucky.

To view the public notice associated with this announcement, click the following link: LRL-2018-01040 Public Notice

To download Google Earth files (.kmz) for Kentucky Predefined Service Areas click here.

To download ESRI ArcMap files (.shp) for Kentucky Predefined Service Areas click here