(a) When the agency proposes a legislative rule, other than an emergency rule, it shall be deemed to be applying to the Legislature for permission, to be granted by law, to promulgate the rule as approved by the agency for submission to the Legislature or as amended and authorized by the Legislature by law.

(b) The agency proposing a legislative rule, other than an emergency rule, after filing the notice of proposed rulemaking required by § 29A-3A-5 of this code, shall then proceed as in the case of a legislative exempt, procedural, and interpretive rule to the point of, but not including, final adoption. In lieu of final adoption, the agency shall finally approve the proposed rule, including any amendments, for submission to the Legislature and file the notice of approval in the State Register and with the Legislative Oversight Commission on Education Accountability within 90 days after the public hearing was held or within 90 days after the end of the public comment period required under § 29A-3A-6 of this code: Provided, That upon receipt of a written request from the agency setting forth valid reasons why the agency is unable to file the agency-approved rule within the 90 day time period, the Legislative Oversight Commission on Education Accountability may grant the agency an extension of time to file the agency-approved rule.

(c) The final agency approval of the rule under this section is deemed to be approved for submission to the Legislature only and does not give any force and effect to the proposed rule. The rule shall have full force and effect only when authority for promulgation of the rule is granted by an act of the Legislature and the rule is promulgated pursuant to § 29A-3A-14 of this code.