Vendor Registration Process

To become a registered vendor with the Iowa DOT's purchasing section, both a Vendor Registration Form and a Federal Identification W-9 form must be completed. Begin the registration process by selecting the Vendor Registration Form listed below. Tell us about your company and the products or services you provide. The W-9 form must also be completed by clicking on the link below. (Please see specific instructions listed below.)

Vendor Registration Form (pdf)

Vendor Registration Form: Select the category headings in which you wish to receive Bid and/or Request for Proposal (RFP) notifications by checking the appropriate lines and enter them on Line 10 of the vendor registration form. This form may be filled out online and saved in your files before attaching to an email to

W-9 Form: You will need your company's Federal Employer Identification Number (FEIN) in order to register with us. If your company does not have an FEIN, you must provide the owner's Social Security number according to the instructions included in the form. A signature is required for this form. The completed form may be faxed to the Iowa DOT's purchasing section at 515-239-1538. The W-9 form must be completed before the vendor registration form can be processed.

You may also download, complete, and mail these forms to:
Iowa Department of Transportation
800 Lincoln Way
Ames, Iowa 50010

Or scan them to a file and email them to:

Or fax them to the Purchasing Section, 515-239-1538

Note: It is the company's responsibility to inform the purchasing section at the Iowa DOT of any changes such as relocation, phone, or goods and services provided. If you have any questions on this process, please call 515-239-1310.

Thank you for doing business with the Iowa DOT.

You will need Adobe Acrobat Reader to print or view PDF files. Adobe also provides a set of free tools that allow visually disabled users to read documents in Adobe PDF format. Acrobat Reader with Accessibility for Visually Impaired Users converts PDF documents into either HTML or ASCII text which can then be read by many screen reading programs.

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This page is maintained by Laura Linduski, Iowa DOT Purchasing