Safence is the high-tension cable barrier by Gregory Industries. Approved by NCHRP 350 TL-3 and TL-4, Safence is a tensioned wire rope cable barrier system that provides controlled impact protection when used as a center roadway barrier, side barrier or slope barrier. Available in 4:1, 6:1 or flatter slope. Safence also meets Test Level-4 requirements with just three cables.