GuideOne Center For Risk Management Van Safety site has info that will assist you with your transportation decisions of today.  Your organization should also note that since there has been well known, established litigation against the use of 15 passenger vans for person transportation use, any use from this point forward puts your organization, its directors, officers, employees, volunteers, drivers, and other contected persons at high risk for possible litigation and as well as possible danger of punitive  litigation. For more information link to these sites https://www.guideone.com/Churches/WebSites/transp.htm related page   www.nasdpts.org/papervans.html