(a) Before any rule is adopted, amended, or repealed, there shall be a public hearing thereon, notice of which shall be published at least once and not less than ten (10) days prior to the public hearing in such newspaper as the Director of the Division of Labor may prescribe.
(b)
(1) All rules and all amendments and repeals thereof shall, unless otherwise prescribed by the director, take effect thirty (30) days after the first publication thereof, and certified copies shall be filed in the office of the Secretary of State.
(2) Every rule adopted and every amendment or repeal shall be published in such manner as the director may determine, and the director shall deliver a copy to every person making application therefor. The director shall include the text of each rule or amendment in an appendix to the annual report of the Division of Labor next following the adoption or amendment of the rule.