Environmental Rules Board Packets

The meeting calendar provides tentative dates for upcoming Environmental Rules Board meetings. Every effort is made to keep this calendar up to date, but meeting dates may be subject to change or cancellation. If a meeting is to be held, the date will be an active link that leads to the agenda and board packets.

To stay current on board meetings and documents, subscribe to page alerts below. Before the date of a meeting, check the IDEM Events Calendar or the meeting calendar to be sure a meeting has not been canceled.

All meetings are scheduled for 1:30 PM in Conference Room A of Indiana Government Center South in Indianapolis, IN (unless otherwise noted). To attend a meeting use the public entrance at 10 North Senate Avenue to gain access to the building.

Board Packets

Board packets for rulemakings that occurred more than two years ago can be obtained from the Rules Development Section. Recordings of past meetings are available on our Environmental Rules Board playlist on YouTube. Please contact the section chief for assistance.

2025

December 18, 2025

Agenda

• Agenda for the December 18, 2025 Environmental Rules Board Meeting [PDF]
• Draft Summary from the October 16, 2025 Environmental Rules Board Meeting [PDF]

Rulemaking Actions

• Title 329 Coal Combustion Residuals Rule, LSA #21-458
  • LSA #21-458 Rule Information Sheet [PDF]
  • LSA #21-458 Response to Comments from 3rd Comment Period [PDF]
  • LSA #21-458 Final Rule [PDF]
  • LSA #21-458 Regulatory Analysis [PDF]

Non-Rule Actions

• Draft Non-Rule Policy Document MP-0010 "Assessment of Late Fees and Other Consequences for Nonpayment of Fees" [PDF]

October 16, 2025

Agenda

• Agenda for the October 16, 2025 Environmental Rules Board Meeting [PDF]
• Draft Summary from the June 11, 2025 Environmental Rules Board Meeting [PDF]
• IDEM ERB Presentation [PDF]
• Aquatic Life Methodologies ERB Presentation [PDF]

Rulemaking Actions

• Title 327 Lead and Copper Rule, LSA #24-428
  • #24-428 Rule Information Sheet [PDF]
  • #24-428 Response to Comments from 1^st Hearing [PDF]
  • #24-428 Response to Comments from 2^nd Comment Period [PDF]
  • #24-428 Response to Comments from 3^rd Comment Period [PDF]
  • #24-428 Final Rule [PDF]
  • #24-428 Regulatory Analysis [PDF]
• Title 326 NOx RACT for Lake and Porter Counties, LSA #25-204
  • #25-204 Rule Information Sheet [PDF]
  • #25-204 Response to Comments from 2^nd Comment Period [PDF]
  • #25-204 Final Rule [PDF]
  • #25-204 Regulatory Analysis [PDF]

Recording of the Hybrid Meeting (10/16/2025) [YouTube]

July 1, 2025

IDEM Report on Evaluation of Existing Regulations

Governor Mike Braun issued a series of executive orders to streamline Indiana's environmental regulation approach, including Executive Order 25-38. EO 25-38 directs agencies responsible for environmental regulations to "identify state environmental regulations and policies that are unduly burdensome, significantly raise the cost of living for Hoosiers, are not supported by current law and the best available science, or do not benefit Indiana's environment."

EO 25-38 established that relevant agencies should "report opportunities to revisit or rescind such state environmental regulations to the Governor's Office no later than July 1, 2025."

• IDEM Regulatory Review Report for Executive Order 25-38 [PDF]
• IDEM Regulatory Review Public Comments for Executive Order 25-38 [PDF]

June 11, 2025

Agenda and Summary

• Agenda for the June 11, 2025 Environmental Rules Board Meeting [PDF]
• Draft Summary from the March 12, 2025 Environmental Rules Board Meeting [PDF]
• Approved June 11, 2025 Environmental Rules Board Meeting Summary [PDF]

Rulemaking Actions

• Title 326 NOx RACT for Lake and Porter Counties, LSA #25-204
  • #25-204 Rule Information Sheet [PDF]
  • #25-204 Response to Comments from 1st Comment Period [PDF]
  • #25-204 Preliminary Rule [PDF]
  • #25-204 Regulatory Analysis [PDF]

Recording of the Hybrid Meeting (06/11/2025) [YouTube]

March 12, 2025

Agenda and Summary

• Agenda for the March 12, 2025 Environmental Rules Board Meeting [PDF]
• Draft Summary from the December 11, 2024 Environmental Rules Board Meeting [PDF]
• Approved March 12, 2025 Environmental Rules Board Meeting Summary [PDF]

Rulemaking Actions

• Title 327 Lead and Copper Rule, LSA #24-428
  • #24-428 Rule Information Sheet [PDF]
  • #24-428 Response to Comments from 1^st Comment Period [PDF]
  • #24-428 Preliminary Rule [PDF]
  • #24-428 Regulatory Analysis [PDF]
• Title 329 Waste Tire Financial Assurance Updates, LSA #24-322
  • #24-322 Rule Information Sheet [PDF]
  • #24-322 Response to Comments from 1^st Comment Period [PDF]
  • #24-322 Final Rule [PDF]
  • #24-322 Regulatory Analysis [PDF]

Recording of the Hybrid Meeting (03/12/2025) [YouTube]

2024

December 11, 2024

Agenda and Summary

• Agenda for the December 11, 2024 Environmental Rules Board Meeting [PDF]
• Draft Summary from the October 9, 2024 Environmental Rules Board Meeting [PDF]
• Approved December 11, 2024 Environmental Rules Board Meeting Summary [PDF]

Rulemaking Actions

• Title 329 Kaiser Aluminum Rule, LSA #24-213
  • #24-213 Rule Information Sheet [PDF]
  • #24-213 Response to Comments from 2^nd Comment Period [PDF]
  • #24-213 Final Rule [PDF]
  • #24-213 Regulatory Analysis [PDF]
• Title 326 Emergency Affirmative Defense Provisions, LSA #24-318
  • LSA #24-318 Rule Information Sheet [PDF]
  • LSA #24-318 Final Rule [PDF]
  • LSA #24-318 Regulatory Analysis [PDF]
• Title 329 Waste Tire Financial Assurance Updates, LSA #24-322
  • LSA #24-322 Rule Information Sheet [PDF]
  • LSA #24-322 Response to Comments from 1^st Comment Period [PDF]
  • LSA #24-322 Draft Rule [PDF]
  • LSA #24-322 Regulatory Analysis [PDF]
• Title 329 Coal Combustion Residuals Rule, LSA #21-458
  • LSA #21-458 Rule Information Sheet [PDF]
  • LSA #21-458 Response to Comments from 2^nd Comment Period [PDF]
  • LSA #21-458 Draft Rule [PDF]

Non-Rule Actions

• 2024 Water Quality Standards Review
  • 2024 Water Quality Standards Review Presentation, Final Version [PDF]
• Air Permitting Report
  • Air Permitting Report, Fiscal Year 2024 [PDF]

Recording of the Hybrid Meeting (12/11/2024) [YouTube]

October 9, 2024

Agenda and Summary

• Agenda for the October 9, 2024 Environmental Rules Board Meeting [PDF]
• Draft Summary from the August 14, 2024 Environmental Rules Board Meeting [PDF]
• Approved October 9, 2024 Environmental Rules Board Meeting Summary [PDF]

Rulemaking Actions

• Title 326 Readoption Rule, LSA #23-809
  • #23-809 Notice of Public Comment Period for Rule Readoption [PDF]
  • #23-809 Readoption Analysis [PDF]
• Title 327 Readoption Rule, LSA #23-810
  • #23-810 Notice of Public Comment Period for Rule Readoption [PDF]
  • #23-810 Readoption Analysis [PDF]
• Title 329 Readoption Rule, LSA #23-812
  • #23-812 Notice of Public Comment Period for Rule Readoption [PDF]
  • #23-812 Readoption Analysis [PDF]
• Title 326 Emergency Affirmative Defense Rule, LSA #24-318
  • #24-318 Rule Information Sheet [PDF]
  • #24-318 Response to Comments from 2^nd Comment Period [PDF]
  • #24-318 Draft Rule [PDF]

Non-Rule Actions

• Permitting for the Placement of Fill Material into Isolated Wetlands, Water-0021-NPD-R0 [PDF]

Recording of the Hybrid Meeting (10/09/2024) [YouTube]

August 14, 2024

Agenda and Summary

• Agenda for the August 14, 2024 Environmental Rules Board Meeting [PDF]
• Summary for the August 14, 2024 Environmental Rules Board Meeting [PDF]
• Draft Summary from the April 10, 2024 Environmental Rules Board Meeting [PDF]

Rulemaking Actions

• Title 326 Civil Penalties Rule, LSA #24-46
  • #24-46 Rule Information Sheet [PDF]
  • #24-46 Response to Comments from 2^nd Comment Period [PDF]
  • #24-46 Final Rule [PDF]
  • #24-46 Regulatory Analysis [PDF]
• Title 327 Civil Penalties Rule, LSA #24-47
  • #24-47 Rule Information Sheet [PDF]
  • #24-47 Response to Comments from 2^nd Comment Period [PDF]
  • #24-47 Final Rule [PDF]
  • #24-47 Regulatory Analysis [PDF]
• Title 329 Civil Penalties Rule, LSA #24-48
  • #24-48 Rule Information Sheet [PDF]
  • #24-48 Response to Comments from 2^nd Comment Period [PDF]
  • #24-48 Final Rule [PDF]
  • #24-48 Regulatory Analysis [PDF]
• Title 329 Kaiser Aluminum Rule, LSA #24-213
  • #24-213 Rule Information Sheet [PDF]
  • #24-213 Response to Comments from 2^nd Comment Period [PDF]
  • #24-213 Draft Rule [PDF]

Recording of the Hybrid Meeting (08/14/2024) [YouTube]

April 10, 2024

Agenda

• Agenda for the April 10, 2024 Environmental Rules Board Meeting [PDF]
• Draft Summary from the August 9, 2023 Environmental Rules Board Meeting [PDF]

Rulemaking Actions

• Title 326 Civil Penalties Rule, LSA #24-46
  • #24-46 Rule Information Sheet [PDF]
  • #24-46 Response to Comments from 1^st Comment Period [PDF]
  • #24-46 Draft Rule [PDF]
  • #24-46 Regulatory Analysis [PDF]
• Title 327 Civil Penalties Rule, LSA #24-47
  • #24-47 Rule Information Sheet [PDF]
  • #24-47 Response to Comments from 1^st Comment Period [PDF]
  • #24-47 Draft Rule [PDF]
  • #24-47 Regulatory Analysis [PDF]
• Title 329 Civil Penalties Rule, LSA #24-48
  • #24-48 Rule Information Sheet [PDF]
  • #24-48 Response to Comments from 1^st Comment Period [PDF]
  • #24-48 Draft Rule [PDF]
  • #24-48 Regulatory Analysis [PDF]

Non-Rule Actions

• Air Permitting Report
  • Air Permitting Report, Fiscal Year 2023 [PDF]
• 2024 List of Impaired Waters and Consolidated Assessment and Listing Methodology under Section 303(d) of the Clean Water Act
  • Indiana’s 2024 303(d) List of Impaired Waters [PDF]

Meeting Transcripts

A professional court reporter produces a verbatim record of each rule hearing at the Environmental Rules Board meetings. IDEM posts the transcripts online as they become available.

• Environmental Rules Board Transcripts

Archived Packets

IDEM staff maintain a record of board packets for rulemakings that occurred more than two years ago. To obtain older board packets, please contact the Rules Development Section Chief.