Hi Marissa, Great question. The Tool Box has a start for you see:
See Section 4. Developing Training Programs for Volunteers/en/table-of-contents/structure/volunteers/training-pro...
Chapter 11 Sections
Section 1. Developing a Plan for Involving Volunteers Section 2. Recruiting Volunteers Section 3. Developing Volunteer Orientation Programs Section 4. Developing Training Programs for Volunteers
Main Section Checklist Examples Tools PowerPoint
Why should your organization have training programs for volunteers? Who should train new volunteers? How do you develop training programs for volunteers? Principles of adult learning
Hope that this helps