http://arcweb.sos.state.or.us/rules/OARS_900/OAR_918/918_305.html
Amend Article 334 -- Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS
(a) Amend 334.15(B) by adding the following to the end of the Section: "Exposed nonmetallic sheathed cable shall be protected where it is installed horizontally less than 8 feet above the floor. Exposed nonmetallic sheathed cable less than 8 feet above the floor that enters the top or bottom of a panelboard shall be protected from physical damage by conduit, raceway, 1/2-inch plywood or 1/2-inch drywall."
Give people here a place to hang a saw or an alum ladder and they will hang it. Maybe its our web feet?