The Missouri Department of Natural Resources is proposing an update to the Missouri Regional Haze Plan for the second planning period. The department invites the public to review and offer written comments on the proposed area boundary designation until Sept. 3, 2026. The department will hold a public hearing about the proposed request before the Missouri Air Conservation Commission. Please follow the hearing link below for more information.
Written comments may be submitted by mail to Missouri Department of Natural Resources, Air Pollution Control Program, ATTN: Air Quality Planning Section Chief, P.O. Box 176, Jefferson City, MO 65102‐0176 or by email to apcpsip@dnr.mo.gov. Comments submitted by email are limited to 20 MB in size. Comments larger than 20 MB need to be submitted by mail to the address above or call 573‐751‐4817 to make other arrangements.
This action updates the Missouri Regional Haze Plan for the Second Planning Period the department submitted to the U.S. Environmental Protection Agency (EPA) in August 2022. This update removes all consent agreements contained in the 2022 plan. Based on the modeling relied on in the 2022 plan, visibility conditions for Missouri’s two Class 1 areas and the seven outstate Class 1 areas impacted by Missouri emissions are below the Uniform Rate of Progress without the emission reductions anticipated from the consent agreements. The air program consulted with other states and Federal Land Managers before proposing the update to the plan. The consultation processes, including a summary of comments received from Federal Land Managers, are included in Appendices A and B of the proposed update to the plan.