Public Comment Form

RULES: Total Reduced Sulfur (3745-73) - Interested Party

Interested Party Review — Ohio Administrative Code (OAC) Chapter 3745-73 – Total Reduced Sulfur Rules


What does Chapter 3745-73 cover?
Chapter 3745-73 of the Ohio Administrative Code (OAC) contains the requirements for the control of emissions of total reduced sulfur from Kraft Pulp Mills. A Kraft Pulp Mill is a wood pulping mill which uses an alkaline sulfide solution containing sodium hydroxide and sodium sulfide (white liquor) in the wood digesting process. These sulfur emissions are precursors to sulfur dioxide and particulate matter for which national ambient air quality standards have been established under the Clean Air Act.

What step is this in the rulemaking process?
This step in Ohio EPA’s rulemaking process, required by Ohio Revised Code (ORC) 121.39, is called Interested Party Review. During this step, the Agency makes available draft rules for interested parties for review and comment. This step occurs after the Early Stakeholder Outreach comment period. 

What changes are being considered?
Ohio EPA performed a general review of the rules in this chapter to fulfill the requirements of Ohio Revised Code (ORC) 106.03 (5-year review). As a result of the review, Ohio EPA has determined that these rules remain necessary and are in need of a minor change. The minor change includes an update to the version of referenced materials in paragraph (L) of OAC rule 3745-73-01. We are recommending no changes to OAC rules 3745-73-02,3745-73-03, and 3745-73-04.

Who will be regulated by these rules?
The rules in OAC Chapter 3745-73 are applicable to any Kraft Pulp Mill operating in the state of Ohio.

What is the rulemaking schedule?
Upon completion of the Interested Party Review portion of this rulemaking, Ohio EPA will make any changes necessary to the rule language. After considering comments, the rules will be filed with JCARR (Joint Committee on Agency Rule Review).

Comments on the draft rules must be received no later than 5 p.m. October 15, 2025.

How can I get more information?
Copies of this fact sheet, CSI form and the draft rules are on the DAPC’s website at https://epa.ohio.gov/divisions-and-offices/air-pollution-control/regulations/interested-party-review

For more information about these draft rules, contact Michelle Black at Michelle.Black@epa.ohio.gov or (614) 644-3498.




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