Ohio Lime Company Gets New Rules for Stinky Kiln
Published Date: 12/11/2025
Rule
Summary
The EPA is giving a thumbs-up to new sulfur dioxide (SO2) pollution limits for Carmeuse Lime’s plant in Ohio, helping keep the air cleaner in Seneca County. These updated rules kick in on January 12, 2026, making sure the plant controls its emissions better. This means healthier air for the community without extra costs for taxpayers.
Analyzed Economic Effects
3 provisions identified: 2 benefits, 1 costs, 0 mixed.
New SO2 Limit for Local Air
EPA approved a new sulfur dioxide (SO2) emissions limit for the Carmeuse Lime Maple Grove facility in Seneca County, Ohio: a 30-day rolling average cap of 1,170 pounds per hour for the combined lime kiln stack. This approval is effective January 12, 2026, and EPA says the new limit will reduce emissions and help the area show compliance with the 2010 SO2 National Ambient Air Quality Standard.
No Significant Small-Business Impact
EPA certified that this action does not have a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act. The final rule approves State-issued limits and does not impose requirements beyond State law, effective January 12, 2026.
State Limit Now Federally Enforceable
EPA incorporated by reference Ohio's Director's Findings and Orders (DFFOs) for Carmeuse Lime into the federally enforceable State Implementation Plan, making the 1,170 lbs/hr SO2 limit federally enforceable under Clean Air Act sections 110 and 113 as of January 12, 2026. That means federal authorities can enforce the same emissions limit against the facility beginning on that date.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-06275 — Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
The EPA just set new rules for renewable fuels in 2026 and 2027, including how much biofuel must be used. They’re also easing the 2025 cellulosic biofuel goals because production fell short and dropping renewable electricity as a qualifying fuel. These changes affect fuel producers and sellers, kick in mostly by mid-2026, and aim to keep America’s fuel cleaner and greener without breaking the bank.
2026-05167 — National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration
The EPA is proposing changes to rules for sterilization facilities that use ethylene oxide, a chemical that can be harmful if not controlled. They want to remove some strict risk-based limits, fix technical mistakes, and update how facilities prove they’re following the rules. If you run or work with these facilities, get ready for new deadlines and clearer standards by mid-2026, which could affect how you manage emissions and compliance costs.
2026-04646 — Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
The EPA is updating pollution rules for big trash-burning plants to cut harmful emissions like lead, mercury, and dioxins. These changes affect both new and existing facilities, tighten limits, remove some loopholes, and improve reporting, all starting May 11, 2026. This update will help clean the air by reducing over 3,200 tons of pollution each year, making communities healthier and safer.
2025-21788 — Oil and Natural Gas Sector Climate Review: Extension of Deadlines in Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources
The EPA is giving oil and natural gas companies more time to meet new pollution control rules and report their emissions. Deadlines for fixing leaks, monitoring equipment, and submitting state plans are pushed back to help everyone get ready without rushing. These changes keep the climate goals on track while easing the financial and timing pressure on the industry.
2025-20402 — Updated Definition of “Waters of the United States”
The EPA and Army Corps are updating the rules that decide which waters are protected under the Clean Water Act, following a 2023 Supreme Court decision. This change helps everyone know exactly which waters are covered, making it easier to protect lakes, rivers, and wetlands while respecting state and tribal rights. People and businesses affected should share their thoughts by January 5, 2026, as this update could impact water projects and environmental protections.
2025-19882 — Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS) Data Reporting and Recordkeeping Under the Toxic Substances Control Act (TSCA); Revision to Regulation
The EPA is updating rules for companies that make or import PFAS chemicals, asking them to report certain info about these substances from 2011-2022. The changes add some smart exceptions to ease reporting on things companies probably don’t know, saving time and hassle. Comments on the proposal are open until late December 2025, so affected businesses should get ready to weigh in!
Previous / Next Documents
Previous: 2025-22559 — Safety Zone; Santa Barbara Harbor, Santa Barbara, CA
On December 14, 2025, from 6:30 to 7:30 p.m., the Coast Guard will block off a safety zone in Santa Barbara Harbor to keep people and boats safe during a fireworks show. No one can enter the area unless the Coast Guard says it’s okay. This temporary rule helps prevent accidents and protects the environment without costing anyone money.
Next: 2025-22564 — Air Plan Approval; Tennessee; Second Period Regional Haze Plan
The EPA just gave a thumbs-up to Tennessee’s updated plan to clear up regional haze and protect the air you see in special natural areas. This plan, effective January 12, 2026, helps keep the skies clearer by cutting pollution from local sources. It mainly affects Tennessee’s environment and communities near protected parks, with no new costs for businesses announced.
Take It Personal
Get Your Personalized Policy View
Start a Free Government Policy Watch to see how policy affects your household, then upgrade to PRIA Full Coverage for year-round monitoring.
Already have an account? Sign in