This IM covers galvanized steel reinforcement. Approved suppliers, manufacturers and galvanizers are found in the Materials Approved Products Listing Enterprise (MAPLE).




        The steel mill and/or supplier shall furnish an identification list, invoice or bill of lading for each shipment to each project. It shall show the project, design number, size, length, grade, heat number, source and number and weight of pieces in the shipment and contain a certification statement state that the attached mill test reports represent the itemized material.

        The signed mill test reports/certification shall include the physical, chemical analysis, ASTM designation, grade and type for each heat.

        The signed mill test reports/certification shall also include a statement indicating the galvanized steel meets the requirements of IM 107, Group 1, Buy America.

        The galvanizer shall provide a galvanizing certificate which states the chromate treatment.

        The certification of compliance shall be signed by a designated or responsible company representative and shall be stated as follows:


The materials itemized in this shipment are certified to be in compliance with the applicable ASTM Standards and the Iowa Department of Transportation Standard Specifications, IMs and meet the Buy America requirements as described in IM 107 for all steel, iron products and coatings.





Authorized Signature & Date



Acceptance of galvanized steel reinforcement shall be on the basis of certification from an approved steel manufacturer and/or supplier and complying results on any verification samples taken.


Verification samples shall be secured from the project site.


  1. Project quantity between 1 and 25 tons, one sample per project of the largest size.


  1. Project quantity over 25 tons, one sample per project of the smallest, medium, and largest size.


  1. Sample size shall be 6 foot long.