The Planning (Scotland) Act sets out a plan-led approach to planning, with four levels from national to local. The National Planning Framework 4 (NPF4) is the national level of the statutory planning framework. The Local Development Plans (LDPs) produced by the local authorities are also part of the statutory planning framework and need to take regard of any registered Local Place Plan (LPP), but Local Place Plans themselves are not part of statutory planning. Regional Spatial Strategies too are not statutory. The following diagram is a helpful visual of how these plans relate to one another, with the plans within the dashed line forming the statutory planning framework.