The State Commissioner of Health or his duly-authorized agent shall have free access at all reasonable hours to any factory, warehouse, or establishment in which hazardous substances as defined in this article are manufactured, processed, packed, or held for introduction into commerce, or to enter any vehicle being used to transport or hold such product in commerce after notice to the owner or person in charge of such factory, warehouse, establishment, or vehicle, for the purpose:
Okla. Stat. tit. 63, § 1-1609