Due to the many ADA violations that have occurred over the years, agencies should put measures in place to reasonably prevent violations. There are many options, but which is the one best measure to put in place? Due to the many ADA violations that have occurred over the years, agencies should put measures in place to reasonably prevent violations. There are many options, but which is the one best measure to put in place? Never allow voluntary services from any individual, employee, or organization Know and understand the purpose laws concerning objects and their costs Pursue training at least every three years with follow-up refresher training annually Understand the Bona Fide Needs Rule and its relationship to obligations and expenses