On receipt, the model is sent to the primary examiner, who decides whether to keep it. Models useful in examination proceedings are likely to be useful for opposition proceedings too. They should therefore be kept until the opposition period expires or a final decision is taken on any opposition filed.
The formalities officer is responsible for implementing the decision to keep or return the model. If the model is to be kept, the formalities officer notes this on the label. If it is to be returned, the formalities officer informs the submitter accordingly and notes the date of return on the label.