Minn. Stat. § 18C.432
Subd. 1. Education and training.
Subd. 2. Training manual and examination development.
The commissioner, in conjunction with the University of Minnesota Extension Service, shall continually revise and update manure applicator training manuals and examinations. Questions in the examinations must be determined by the commissioner. Manuals and examinations must include manure management practices that discuss prevention of manure occurrence in waters of the state.