"Operational registration certificates" mean certificates issued to persons who apply pesticides commercially or who are present and in direct command of such persons.

Source. #150, eff 1-9-74; ss by #2209, eff 12-13-82; ss by #2781, eff 7-26-84; ss by #4867, eff 7-19-90; ss and moved by #6239, eff 5-2-96 (from Pes 101.17)