Lime Manufacturing Plants National Emission Standards for Hazardous Air Pollutants (NESHAP)

On this page:

• Rule Summary
• Rule History
• Additional Resources
• Compliance

Rule Summary

This rule applies to commercial and captive lime manufacturing plants that are located at a major stationary source of hazardous air pollutants (HAP).  The final amended rule sets maximum achievable control technology (MACT) standards for four HAP:

• Hydrogen chloride (HCl)
• Mercury
• Organic HAP
• Dioxin/furans (D/F)

Rule History

11/22/2024 -  Technical Corrections: Lime Manufacturing NESHAP Final Rule (pdf) (470.37 KB, Prepublication version)

07/16/2024 - Final Rule - Lime Manufacturing Plants NESHAP Technology Review

02/09/2024 - Supplementary Proposed Rule

01/05/2023 - Proposed Rule 

07/24/2020 - Final Rule

09/16/2019 - Proposed Rule

01/05/2004 – Final Rule

12/20/2002 – Proposed Rule

Additional Resources

Final Rule 2024

• Fact Sheet: Final Rule Amendments to Air Toxics Standards for Lime Manufacturing Plants (pdf) (234.68 KB, June 28, 2024)
• Regulatory Impact Analysis: Final Amendments to the Lime Manufacturing NESHAP (pdf) (966.66 KB, June 28, 2024)
• Response to Petition for Reconsideration of the Lime Manufacturing NESHAP Amendments (pdf) (189.92 KB, Jan. 10, 2025)

Supplemental Proposed Rule 2024

• Regulatory Impact Analysis for the Lime Manufacturing Supplemental Proposal (pdf) (929.4 KB)
• Fact Sheet: Supplemental Proposal for the Air Toxics Standards for Lime Manufacturing Plants (pdf) (170.85 KB, Jan. 31, 2024)

Proposed Amendments 2022

Fact Sheet: Proposed Amendments to Air Toxics Standards for Lime Manufacturing Plants (pdf) (198.82 KB, Dec. 20, 2022)

Final Risk & Technology Review Amendments 2020

• Fact Sheet:  Final Amendments to Air Toxics Standards for Lime Manufacturing Plants

Proposed Risk & Technology Review Amendments 2019

• Fact Sheet:  Proposed Risk and Technology Review Amendments

Final Rule 2003

• Final Rule to Reduce Toxic Air Emissions from Lime Manufacturing Plants Fact Sheet
• National Emission Standards for Hazardous Air Pollutants (NESHAP) for Lime Manufacturing Background Information Document (BID): Public Comments and Responses
• Economic Impact Analysis For the Lime Manufacturing MACT Standard Final Report

For additional documents related to this rule, view the documents in the docket folder.

Related Rules

Lime Manufacturing Plants New Source Performance Standards (NSPS)

Compliance

The Environmental Council of the States. The website provides state delegation information for environmental programs. 

Small Entity Compliance Guide for Lime Manufacturing Plants (pdf) (546.65 KB)