There are no licensing or certification requirements for an RDA in MS after they pass the required courses and fulfill the training requirements.
However, keep in mind that the requirements can vary from state to state.
So, if you plan to move away, you might need to fulfill new requirements to practice in another area or state.
Always check with the state before making plans to begin a new job in a new state.
You need to submit your details and qualification to be registered in each state to continue practicing your profession as a resisted dental assistant.