Project Waiver of the American Iron and Steel Requirements to Winston-Salem and Forsyth County, North Carolina for Ductile Iron Pipe Back-up Rings for HDPE Pipe

Product specific project waivers apply only to the specified product and proposed project referenced in the waiver. Any other project that wishes to use a similar product must apply for a separate waiver based on specific project circumstances.

• Project Waiver of the American Iron and Steel Requirements to Winston-Salem and Forsyth County, North Carolina for Ductile Iron Pipe Back-up Rings for HDPE Pipe (pdf) (700.63 KB, August 6, 2015)