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The IDNR headquarters at 1 Natural Resources Way in Springfield has experienced a power outage and tree damage throughout the grounds as a result of severe storms in the area. The agency expects to reopen the building to the public on Monday, June 15, 2026, though this could be subject to change. Check back here for an update before planning to visit the office in person.

Operator Memoranda

2000 - Current

 

2026

  • 2026-01
    Retirement of Dan Barkley

2025

  • 2025-03
    New IEPA Groundwater Monitoring Requirements
  • 2025-02
     Hydrogeologic Review Coordination With IEPA
  • 2025-01
    Affected Acreage Deadline Extension
     

2024

2023

  • 2023-03 Revised 07/03/2024
    Agricultural Land Productivity Formula and Visual Testing Requests (Replaces Operator Memoranda 2019-02 and 2019-02 Revised).
  • 2023-02
    Reporting of Affected Acreage, FY23
  • 2023-01
    1816/1817 Rule Changes    
     

2022

2021

2020

2019

  • 2019-03
    Reporting of Affected Acreage, FY 19
  • 2019-02R Replaced with Memorandum 2023-03
    Agricultural Land Productivity Crop Testing Request
  • 2019-01 (Revised)
    Fish and Wildlife Subcategories, Forest, and Refuse Pasture Testing Requests   
     

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1982 - 1999

 

1999

 

1998

 

1997

 

1996

 

1995

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982