C.R.S. § 35-60-109

(1) The commissioner is authorized to promulgate, amend, and repeal, in accordance with the “State Administrative Procedure Act”, article 4 of title 24 , C.R.S., such rules as are specifically required by this article and such other reasonable rules, including any record-keeping requirements and operating requirements, as may be necessary for the efficient enforcement of this article. (2) In the interest of uniformity, the commissioner shall by rule adopt, unless the commissioner determines that they are inconsistent with this article or are not appropriate to conditions that exist in this state, the following: (a) The official definitions of feed ingredients and official feed terms adopted by the association of American feed control officials as published in the official publication of such association; and (b) The regulations promulgated pursuant to the “Federal Food, Drug, and Cosmetic Act”; except that, if the commissioner determines that any of such definitions, terms, and regulations are inconsistent with this article or are not appropriate to conditions in this state, the commissioner shall not adopt them. (3) Before the commissioner issues, amends, or repeals any rule authorized by this article, the commissioner shall provide notice as required by section 24-4-103 , C.R.S.