(1) The commissioner, pursuant to the provisions of the "State Administrative Procedure Act", article 4 of title 24, C.R.S., shall enforce the provisions of this article and of rules promulgated pursuant to this article or section 35-1-107 (5).

(2) Upon the commissioner's own motion or upon the complaint of any person, the commissioner may make any investigations necessary to ensure compliance with this article.

(3) At any time during regular business hours, upon consent or upon obtaining an administrative search warrant and for the purpose of enforcing any provision of this article or rule promulgated pursuant to this article, the commissioner shall have free and unimpeded access to:

(a) All buildings, yards, warehouses, storage facilities, tanks, tank trailers, vehicles, and any other public or private property, premises, or carriers in which anhydrous ammonia is kept, stored, handled, distributed, or transported; and

(b) All business records required to be kept that relate to the storage, use, transportation, or distribution of anhydrous ammonia. The commissioner may make copies of such records.

(4) (a) Whenever the commissioner has reasonable cause to believe a violation of any provision of this article or any rule promulgated pursuant to this article has occurred and immediate enforcement is deemed necessary, the commissioner may issue a cease-and-desist order, which may require any person to cease violating any provision of this article or any rule promulgated pursuant to this article. Such cease-and-desist order shall set forth the provisions alleged to have been violated, the facts alleged to have constituted the violation, and the requirement that all actions be ceased forthwith.

(b) In the event that any person fails to comply with a cease-and-desist order within twenty-four hours, the commissioner may bring a suit for a temporary restraining order and injunctive relief to prevent any further or continued violation of such order.

(c) No stay of a cease-and-desist order shall be issued before a hearing on the order involving both parties.

(d) Matters brought before a court pursuant to this section shall have preference over other matters on the court's calendar.

(5) The commissioner shall have full authority to administer oaths and take statements, to issue administrative subpoenas requiring the attendance of witnesses before the commissioner and the production of all books, memoranda, papers, and other documents, articles, or instruments, and to compel the disclosure by such witnesses of all facts known to them relative to the matters under investigation. Upon the failure or refusal of any witness to obey an administrative subpoena, the commissioner may petition the district court, and, upon a proper showing, the court may enter an order compelling the witness to appear and testify or produce documentary evidence. Failure to obey such an order of the court shall be punishable as a contempt of court.

(6) Whenever the commissioner considers that a violation of any provision of this article or rule promulgated pursuant to this article has occurred or will occur, and that immediate and irreparable injury, loss, or damage will result if such violation is not immediately restrained or enjoined, the commissioner may apply to any court of competent jurisdiction to temporarily or permanently restrain or enjoin the act or practice in question and to enforce compliance with this article or any rule promulgated pursuant to this article. In any such action, the commissioner shall not be required to plead or prove irreparable injury or the inadequacy of the remedy at law. Under no circumstances shall the court require the commissioner to post a bond.