Per MUTCD 2003 Section 2A.19, what is the minimum lateral offset from the edge of the shoulder to the near edge of an overhead sign support, and what is required if that support is in the clear zone?

1. 17 ft, measured vertically instead of laterally
2. 6 ft, and the support shall have a barrier or crash cushion if it is within the clear zone
3. 2 ft, with no shielding required
4. 12 ft, and breakaway bases are mandatory on every overhead truss