Alerts on objects entered in SIS II pursuant to this Decision shall be kept only for the time required to achieve the purposes for which they were entered.

Alerts on objects entered in accordance with Article 36 shall be kept for a maximum of five years.

Alerts on objects entered in accordance with Article 38 shall be kept for a maximum of 10 years.

The retention periods referred to in paragraphs 2 and 3 may be extended should this prove necessary for the purposes for which the alert was issued. In such a case, paragraphs 2 and 3 shall apply also to the extension.