Colorado Vendor Self Service (ColoradoVSS) is the vendor-facing component of the CORE system. Most State Agencies and many Institutions of Higher Education are posting solicitations for goods and services as well as construction notices in ColoradoVSS. 

What does the Upgrade mean to vendors?


ColoradoVSS Top 6 Registration Tips

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Gather Information

After you select Register from the ColoradoVSS website, gather all of the information detailed on the Registration Tips page and have a copy of your W-9 available.

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Tax Identification Number

When entering your Taxpayer Identification Number (TIN) from your W-9 form, leave out the dashes

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Email Verification

Make sure you enter a valid email address in your User Information.

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Commodity Codes

Make sure you enter Commodity Codes in your User Information, as this will ensure that you receive emails about newly published ColoradoVSS Solicitations. 

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Wildcard Search

When searching for Commodity Codes, entering an asterisk (*) before and after each word (or string of words) will yeild more results.

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Business Type

Enter your appropriate Business Types to help the State of Colorado classify your business appropriately.