Blue Shaded Area - welding repairs allowed as long as lip damage does not exceed 4" at its widest point, not including the scuff bar.

Magenta Shaded Area - only cosmetic welding such as scrapes, stone chips and chips from air tools.

Yellow Shaded Area - only to be welded on clean holes such as bullet holes. Neve weld if stress cracked.

Red Shaded Area - Never weld for any reason.