This paper reviews the status and validity of two provisional IFATCA policy statements on 4D Trajectory Concepts/Management. The subject was investigated by TOC in 2007 and directors in 2008 Arusha Conference ratified current policy statements and status as “provisional”. It was foreseen that new technical and operational development would require periodic review of the subject and relevant IFATCA policies. Such review is presented in this paper. One policy statement is proposed for deletion. The wording of another provisional policy statement is proposed to be updated.