Backing material.

37-02-01-06. Backing material. Backing material for portable emblems shall be equivalent to four-hundredths of an inch [1.016 millimeters] minimum thickness aluminum, 22 gage [.03 inches or 0.762 millimeters] minimum thickness mill-galvanized or coated sheet steel with the surface clean and receptive to a durable bond. The backing material shall be free of burrs. Any material equal to or superior to these requirements may be utilized. General Authority: NDCC 39-21-50 Law Implemented: NDCC 39-21-50