Prequalification of Contractors Bidding on Construction Contracts

Approved Rules for Prequalification of Construction Contractors signed by the Managers of Aviation and Department of Transportation and Infrastructure: 

Prequalification Rules, Effective July 1, 2019(PDF, 376KB)


If you are submitting a Letter of Guarantee with your Prequalification Application, below is a sample letter of the required language from the City and County of Denver.

Sample Letter for Applicants(PDF, 65KB)

Beginning in September 2021, the Department of Aviation and DOTI updated the process for receiving Contractor Prequalification Applications. This new process allows contractors to submit and manage applications electronically.

In order to submit or renew an Application, contractors must be registered with B2Gnow; there is no fee for registration.

If you are not already registered with the system or are unsure whether you have an account, please utilize the
Vendor Registration Getting Started Guide(PDF, 283KB).