I signed up for a Missouri online class. It was free. Although I own land in Iowa, most of my activity regarding spraying is in Missouri. As I understand it, certifications are state specific, so I chose Missouri for certification. Appreciate the feedback here, gave me the initiative to move forward with getting my own.
Although I try to be careful in handling and spraying, I'm probably not as educated as I could be in the harmful effects of getting herbicide on my skin.eyes, etc. Recent reading of labels got my attention.