RIOS™ is designed in such a way that a facility can become certified without using a consultant. That having been said, companies often hire consultants to help them through the process. If there is a clear deadline for being certified, if financial resources are more plentiful than time available for staff, or if the company is interested in getting professional guidance through the process, then a consultant should be considered.
Consultants can provide a wide range of services at a wide range of prices. From providing a framework with deadlines to a full implementation, the options are endless. Keep in mind that a management system is a living tool that is constant, cyclical development. No matter what route you choose to take, it is important that the person(s) that will be managing the system understand it and the process fully.