In accordance with section 12(b) of the act (16 P. S. § 12012(b)), in selecting employes of a county department of health, the county health director shall give preference to professional and technical personnel employed by municipal departments or boards of health at the time such departments or boards were dissolved in accordance with section 15 of the act (16 P. S. § 12015), and to professional and technical personnel employed by the Department whose positions in the county or counties served by the county department of health may have been terminated as a result of the establishment of the county department of health, if such personnel meet the qualifications prescribed by the Department.
28 Pa. Code § 13.23