138.The SSRO has a duty to keep under review the provision made by Part 2 and SSCRs which are in force (subsection (1)). Subsections (3) and (4) provide for a duty on the Secretary of State to carry out a review within 3 years of the first SSCRs coming into force and every 5 years thereafter. In carrying out this review the Secretary of State must have regard to any recommendations made by the SSRO (subsection (2)).