In order to determine compliance with the sections in this chapter and related statutes, the department may enter and inspect the location of an applicant or a permit holder at any reasonable time without prior notification. This unannounced monitoring may include inspection of relevant records and/or interviews with patients, narcotic treatment program (NTP) personnel and prospective NTP personnel, to determine knowledge of and compliance with the rules and statutes governing the operation of an NTP. Inspection and monitoring can occur at unspecified frequencies and are subject to the provisions of the Code of Federal Regulations,