1.  Promulgation.  The commissioner is authorized to promulgate, in a manner consistent with the Maine Administrative Procedure Act, such rules and regulations for commercial feeds and pet foods as are specifically authorized in this subchapter and such other reasonable rules and regulations as may be necessary for the efficient enforcement of this subchapter. In the interest of uniformity the commissioner shall by regulation adopt, unless the commissioner determines that they are inconsistent with this subchapter or are not appropriate to conditions that exist in this State, the following:  

2.  Publication.  Before the issuance, amendment or repeal of any rule or regulation authorized by this subchapter, notice and opportunity for a hearing shall be provided in a manner consistent with the rule-making provisions of the Maine Administrative Procedure Act. Notwithstanding this paragraph, if the commissioner, pursuant to the authority of this subchapter, adopts the official definitions of feed ingredients or official feed terms as adopted by the Association of American Feed Control Officials, or regulations promulgated pursuant to the authority of the Federal Food, Drug and Cosmetic Act, any amendment or modification adopted by the association or by the Secretary of Health, Education and Welfare in the case of regulations promulgated pursuant to the Federal Food, Drug and Cosmetic Act, shall be adopted automatically under this subchapter without regard to the publication of the notice required by this subsection unless the commissioner by rule specifically determines that the amendment or modification shall not be adopted.