Registration Check List
To register in the Self-Service Supplier Registration Portal for Metropolitan St. Louis Sewer District, Click on Supplier Registration to begin the process of creating your Supplier Profile.
It will be helpful to have the following information on-hand before initiating your registration:
- A completed Internal Revenue Service (IRS) W-9 Form (https://www.irs.gov/pub/irs-pdf/fw9.pdf). Ensure you have the most recent version of the W-9 form from the IRS.
- The W-9 must be signed and dated within the last 12 months of submitting the registration. The form is required to submit your registration, and it must match to the information on the supplier registration
- Contact information including name, email address, and mobile/phone number
Once the required information is entered and submitted, you will receive a notification from MSD confirming submission of your registration as a supplier for MSD. Your current business relationship will be in a prospective state while the Purchasing/Supplier Team processes your registration. Once approved your business relationship will update to Spend Authorized on MSD’s website and you will be able to manage your Supplier profile within MSD’s website.