The operations and facilities of all permittees located in the state of Rhode Island shall be inspected by the director or a milk inspector subordinate to the director at least twice each year. The operations and facilities of all permittees located outside the state of Rhode Island shall likewise be inspected by the director or a milk inspector subordinate to the director at least twice a year; provided, that in the event that the director shall be satisfied that the entire inspection service of another state shall be adequate and reliable to ensure compliance with the provisions of this chapter on the part of producers, milk haulers, or permittees in another state, or in the event that he or she shall be satisfied as to the reliability of any one or more individual inspectors located in another state to ensure compliance, he or she may certify the service or the inspectors, as the case may be, to make the inspections of the operations and facilities of out-of-state permittees located in another state required under this section and required as a condition precedent to the issuance of permits in the first instance.