The Board of Certification shall have the authority to establish certification programs for personnel who operate the distribution portion of a water treatment facility.  The Board may provide for voluntary of mandatory certification and may provide requirements for training, education, and experience of personnel to be certified.  The owner of a water treatment facility shall have three years to obtain certification or the services of appropriately certified distribution personnel after the effective date of mandatory certification.  (1989, c. 227, s. 7.)