Project Waiver of American Iron and Steel Requirements for 4-inch and 8-inch Stainless Steel Check Valves to the City of North Liberty, Iowa (DWSRF)

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 AIS Requirements for 4-inch and 8-inch Stainless Steel Check Valves to the City of North Liberty, Iowa (DWSRF) (pdf) (257.01 KB, February 28, 2018)