The office may add an allowable form of medical cannabinoid product, and may add or modify a qualifying medical condition upon its own initiative, upon a petition from a member of the public or from the Cannabis Advisory Council or as directed by law. The office must evaluate all petitions and must make the addition or modification if the office determines that the addition or modification is warranted by the best available evidence and research. If the office wishes to add an allowable form or add or modify a qualifying medical condition, the office must notify the chairs and ranking minority members of the legislative committees and divisions with jurisdiction over health finance and policy by January 15 of the year in which the change becomes effective. In this notification, the office must specify the proposed addition or modification, the reasons for the addition or modification, any written comments received by the office from the public about the addition or modification, and any guidance received from the Cannabis Advisory Council. An addition or modification by the office under this subdivision becomes effective on August 1 of that year unless the legislature by law provides otherwise.