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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.
System and Support Availability:
VSS User Support Hours: Mon-Fri 8:00 a.m. - 5:00 p.m.
VSS System Availability: Mon-Fri 6:30 a.m. - 9:00 p.m
VSS System Weekend Availability: Sat-Sun 6:30 a.m. - 9:00 p.m. (except maintenance windows).
VSS Support Center Email: vsshelp@state.co.us
The URL for the VSS program is located in the footer of this page.
Photo by: Diane Hradecky, DOC, Aurora Borealis NE Colo
ColoradoVSS Top 6 Registration Tips
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.
Tax Identification Number
When entering your Taxpayer Identification Number (TIN) from your W-9 form, leave out the dashes.
Email Verification
Make sure you enter a valid email address in your User Information.
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.
Wildcard Search
When searching for Commodity Codes, entering an asterisk (*) before and after each word (or string of words) will yield more results.
Business Type
Enter your appropriate Business Types to help the State of Colorado classify your business appropriately.
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