IFATCA Policy is:

ATCOs shall participate in a refresher course at least every year. This course should not have a bearing on the validation of the controller. The training and simulation provided during the refresher course should be designed to ensure the maintenance of knowledge and abilities with respect to all standards, procedures, equipment and techniques currently in use.

In addition to a yearly refresher course, adequate training shall be provided before the introduction of new or modified equipment and changes to standards or procedures.

Member Associations are encouraged to submit proposals to their ANSP regarding the implementation of refresher training courses.