Hello Mike ; Considering that the SMD part are produced in the upper or lower layer so the clearance to board outline is as same as the trace to outline which is measured to 0.2 for PCB outline and 0.4 for V-cut line as it shows the below illustration taken from JLCPCB capabilities . | Features | Capabilities | Notes | Patterns | | -------- | ------------ | ----- | -------- | | Trace to Outline | 0.2mm | Ships as individual board(Rounting):Trace to Outline≥0.2mm |  | | Trace to V-cut line | 0.4mm | Ship as panel with V-scoring: Trace to V-cut line≥0.4mm |  |

Ok thanks.  I thought it might need more clearance for a component so I've been leaving 2mm.