The Assessor's required experience and training shall be graduation from college ("graduation from college" shall be interpreted as completion of a four-year college course or its equivalent) and one year's employment in municipal assessment; or, in lieu thereof, not less than five years' employment in the appraisal or assessment of real or personal property, including at least two years' employment in municipal assessment; or, in lieu thereof, any combination of the above training and experience, including the two years' employment in municipal assessment; or, in lieu thereof, certification by the Connecticut Association of Assessing Officers as a Certified Connecticut Assessor or certification by the International Association of Assessment Officers as a Certified Assessment Evaluator.