Development Planning Act (Cap. 552), article 52

52. In the circumstances where multiple plans and policies apply to the same matter or area and there is a material conflict between any of them, precedence should be afforded in the following order: the Spatial Strategy over the subject plan; the subject plan over the local plan, the local plan over the action plan or management plan, the action plan or the management plans over the development brief and the development brief over other policies mentioned in article 50. Procedure for subsidiary plans and policies.