An agency shall consider a legislative exempt, procedural and interpretive rule for adoption not later than six months after the close of public comment and file a notice of withdrawal or adoption in the State Register within that period. An agency's failure to file the notice constitutes withdrawal and the Secretary of State shall note the failure in the State Register immediately upon the expiration of the six-month period.
A legislative exempt, procedural or interpretive rule may be amended by the agency prior to final adoption without further hearing or public comment. The amendment may not change the main purpose of the rule. If the fiscal implications have changed since the rule was proposed, the agency shall attach a new fiscal note to the notice of filing. Upon adoption of the rule, including any amendment, the agency shall file the text of the adopted legislative exempt, procedural or interpretive rule with its notice of adoption in the State Register and the rule is effective on the date specified in the rule or thirty days after the filing, whichever is later or as specified in this code.