Changes as of July 1st to Idaho law. 1) "Public schools can no longer use taxpayer resources to accommodate teachers’ unions — including by giving teachers paid time off for union “activities” or by using payroll systems to deduct union dues. The list of union “activities” in House Bill 516 is long. Among other things, it includes: Supporting or opposing candidates for office Influencing legislation Promoting union membership Participating in the “administration business or i