Items Required To Register 1. W-9 (signed and dated within 24 months of today's date; preferably the current year)

A current W-9 MUST BE UPLOADED to the VSS site (the last step before you click the Register button)  

PLEASE NOTE: The Jefferson County Commission Finance Department requires this form to be updated every 24 months using the latest version of the Form W-9 as provided by the IRS. When uploading your company's W-9 be sure the Company Name and Doing Business As (dba) Name are listed as issued by the IRS. W-9 validations are performed using the TINCheck Payee Verification System


2. DUNS #

If you don't have a DUNS #, please complete the VSS registration process and apply at https://fedgov.dnb.com/webform. Once you receive your number, please update your VSS vendor profile and enter your DUNS # in VSS)


3. Valid Email Address (entered on the General Page)


4. Commodity Codes

Commodity Code selection is very important because it determines vendor notification and selection. Bidders lists and notifications are generated when the bid solicitation Commodity Code matches the Commodity Code SELECTED by vendor

Please review the Commodity Code listing and SELECT the CODES that apply to the Goods and Services your company can offer. These codes will be entered during the registration process

1. Go to the VSS website: https://mss.jccal.org/mss
2. Click “Vendor Self Service”, then “Registration” or from the Vendor Registration home page Click "Register (New Vendors)", then "Register"

It is very Important that you Complete the following steps:
a. Create your USER ID and PASSWORD
b. Complete the New Vendor Registration: General Information
c. Enter a valid email address (where you want notifications to be sent)
d. Enter your DUNS # in the General Information section
e. Verify/Save the mailing address and Add/Enter Remit Address (by selecting the small blue ADD)
f. Add/Enter Vendor additional Contacts
g. Select/Save ALL Commodity Codes that apply to the goods and/or services you offer
h. Review (Edit/Change registration info if needed)
i. UPLOAD your W-9 (signed and dated within 24 months of today’s date, preferably the current year)
j. Select REGISTER

It is very important that a DUNS# is ENTERED, a current W-9 (signed and dated within 24 months of today’s date, preferably this year) is UPLOADED and all Commodity Codes that apply to the goods and/or services your company offers are SELECTED and added to your vendor profile Bidding opportunities and/or notifications are generated when the bid solicitation Commodity Code matches the Commodity Code added by vendor