First, you are going to teach the students about the procedure and initially bring up all of the details of the procedure.
Then, you are going to reteach it when necessary. This can either be praising when somebody does something right or pointing out when something was done wrong (Not individuals).
Lastly, you are going to consistently reinforce the information by not loosening your rules. You will need to review the procedures every so often to make sure they still apply.