The Extension Master Gardener National Committee compiles a report of Master Gardener activity, every few years. Recently, they released the report for 2018, with all but three states reporting (Massachusetts does not have an Extension Master Gardener Program).
In 2008, the Home Horticulture Working Group voted on and approved curricular standards for annual Master Gardener training for new volunteers. As you start to put your schedule of classes together for 2020, please take a moment to review the standards, and be sure that your class content aligns with current guidance.
Training must consist of at least 40 hours of training time. This time can include time in class, time spent on online course modules, and time spent on practical or hands-on activities.