SOQ Submittal Guidelines

SOQ Submittal Guidelines

Engineering Consultants Section (ECS)

The ADOT section is responsible for facilitating the advertisement/solicitation, selection, negotiation, execution, management and administration of professional architectural and engineering (A/E) services contracts.


Prequalification Requirement

Prime Consultant firms must be prequalified with ECS prior to submitting  SOQ proposals. Firms not prequalified must allow sufficient time (7 to 10 business days) to have the Consultant Prequalification Application reviewed and approved by ECS prior to  SOQ submittal.


Request for Qualification (RFQ ) Packages

RFQ Packages are available for downloading on the first Advertisement Date through the SOQ submittal deadline, and can be found on the ECS website under Current Advertisements. Carefully review each RFQ Package, as each package may vary . Proposer must adhere to the instructions in each RFQ Package, as they may vary, and to avoid SOQ proposal rejection. It is the sole responsibility of the proposer to ensure they are reviewing and working with the correct RFQ document and forms.


Amendments to RFQ Package

Amendments to the original solicitation/RFQ Package are sometimes made to clarify or modify the scope of work, submittal instructions and/or answer questions submitted by firms regarding information contained in the RFQ Package. Amendments are posted on the ECS website under the RFQ Package and Information Request. Firms submitting an SOQ proposal must acknowledge receipt of all Amendments by printing and signing each Amendment, and include them in their SOQ proposal submitted as required in the RFQ. If a signed copy of all Amendments for the contract are not attached to the firm's SOQ, the SOQ proposal shall be rejected.



Firms must register to receive courtesy email notifications of Amendments, deadline changes or other information related to a specific contract advertisement. To register, click on the highlighted Registerlink on any contract listed under Current Advertisements, complete the form in its entirety, check the box or boxes for the contract(s) that interest you and click "Send to ECS."


Method of Submission

SOQ proposals are emailed to [email protected] or as otherwise indicated in the Request for Qualifications (RFQ).  ECS recommends that firms allow sufficient time for the SOQ submittal process. This will assist in resolving any technical difficulties prior to submission. SOQ proposals not submitted by the date and time specified in the RFQ Package shall be rejected.

Should you require additional assistance or have further questions regarding this process, contact ECS at 602.712.7525.