(1) For the purpose of enforcement of this article, and in order to determine whether its provisions have been complied with, including whether or not any operations may be subject to such provisions, officers or employees duly designated by the commissioner, upon presenting appropriate credentials, and a written or oral notice to the owner, operator, or agent in charge, are authorized: (a) to enter, during normal business hours, any factory, warehouse, or establishment within the state in which commercial feeds are manufactured, processed, packed or held for distribution, or to enter any vehicle being used to transport or hold such feeds; and (b) to inspect during normal business hours and within reasonable limits and in a reasonable manner, such factory, warehouse, establishment or vehicle and all pertinent equipment, finished and unfinished materials, containers, and labeling thereon. The inspection may include the verification of only such records, and production and control procedures as may be necessary to determine compliance with the good manufacturing practice regulations established under paragraph (d) of Section 75-45-165.

(2) A separate notice shall be given for each such inspection, but a notice shall not be required for each entry made during the period covered by the inspection. Each such inspection shall be commenced and completed with reasonable promptness. Upon completion of the inspection, the person in charge of the facility or vehicle shall be so notified.

(3) If the officer or employee making such inspection of a factory, warehouse, vehicle or other establishment has obtained a sample in the course of the inspection, upon completion of the inspection and prior to leaving the premises or vehicle he, upon request, shall give to the owner, operator, or agent in charge, a receipt describing the samples obtained.

(4) If the owner of any factory, warehouse, vehicle or establishment described in subsection (1), or his agent, refuses to admit the commissioner or his agent to inspect in accordance with subsections (1) and (2), the commissioner is authorized to obtain from any state court a warrant directing such owner or his agent to submit the premises described in such warrant to inspection.

(5) For the purpose of the enforcement of this article, the commissioner or his duly designated agent is authorized to enter upon any public or private premises including any vehicle of transport during regular business hours to have access to, and to obtain samples, and to examine records relating to distribution of commercial feeds.

(6) Sampling and analysis shall be conducted in accordance with methods published by the AOAC International, or in accordance with other generally recognized methods.

(7) The results of all analyses of official samples shall be forwarded by the State Chemist to the person named on the label and to the purchaser. When the inspection and analysis of an official sample indicates a commercial feed has been adulterated or misbranded and upon request within thirty (30) days following receipt of the analysis the State Chemist shall furnish to the registrant a portion of the sample concerned.

(8) The commissioner and State Chemist, in determining for administrative purposes whether a commercial feed is deficient in any component, shall be guided by the official sample as defined in paragraph (p) of Section 75-45-153 and obtained and analyzed as provided for in subsections (3), (5), and (6) of this section.