Ind. Code § 25-42.5-11-14
The commission or an authorized committee of the commission may direct revisions to a previously adopted rule or amendment for purposes of correcting typographical errors, errors in format, errors in consistency, or grammatical errors. Public notice of any revisions shall be posted on the website of the commission. The revision shall be subject to challenge by any person for a period of thirty (30) days after posting. The revision may be challenged only on grounds that the revision results in a material change to a rule. A challenge shall be made in writing and delivered to the chair of the commission prior to the end of the notice period. If no challenge is made, the revision will take effect without further action. If the revision is challenged, the revision may not take effect without the approval of the commission.
IC 25-42.5-11-14