Engineering Consultants

Consultant Prequalification

Consultants interested in providing design services to ADOT are required to be prequalified with ECS. Prequalification is done on a biennial year basis with each prequalification period beginning Jan. 1 of an even numbered year (e.g., 2014, 2016, 2018) and ending on Dec. 31 of an odd numbered year (e.g., 2015, 2017, 2019).

All firms must prequalify for 2017-2018 before they can submit Statement of Qualifications (SOQ) for contracts advertised with a SOQ due date between Jan. 1, 2018, and Dec. 31, 2019.

There is no specific deadline to submit a prequalification application; however, firms should expect the prequalification process to take up to 10 business days and are encouraged to prequalify as early as possible. Consultants are encouraged to use the prequalification resources on this page to ensure a successful prequalification process.

All firms wishing to prequalify will need to provide a current AZ UTRACS Vendor Registration Number. To get a new AZ UTRACS registration number, update an existing AZ UTRACS registration or search for an existing AZ UTRACS number, go to

 It is the firm's responsibility to ensure that the AZ UTRACS Vendor Registration Number does not expire at any time during the Prequalification. Expired AZ UTRACS Registration Number may result in a firms SOQ being disqualified.

Consultants currently prequalified with ADOT/ECS for the 2016-2017 period will have their Pre-Qualified status renewed automatically for 2018-2019.  Consultants will not need to re-apply, but will be required to review their current prequalification application information and take action by March 1, 2018 to maintain their “Prequalified” status, as outlined in Information Bulletin 18-01.


How to Begin the Prequalification Process

Access Consultant Prequalification

Prequalification Resources: Tools to Help Consultants Prequalify Successfully

Current Prequalified Consultants for 2018-2019

These reports are updated monthly. For questions on prequalification, please email or call 602.712.7525.

Current Subconsultant List

Update Prequalification Consultant Information

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Civil Rights

Pursuant to Title VI of the Civil Rights Act of 1964, the Americans with Disabilities Act (ADA) and other nondiscrimination laws and authorities, ADOT does not discriminate on the basis of race, color, national origin, sex, age, or disability. Persons that require a reasonable accommodation based on language or disability should contact ADOT’s Civil Rights Office at Requests should be made as early as possible to ensure the State has an opportunity to address the accommodation.

De acuerdo con el Título VI de la Ley de Derechos Civiles de 1964, la Ley de Estadounidenses con Discapacidades (ADA por sus siglas en inglés) y otras normas y leyes antidiscriminatorias, el Departamento de Transporte de Arizona (ADOT) no discrimina por motivos de raza, color, origen nacional, sexo, edad o discapacidad. Las personas que requieran asistencia (dentro de lo razonable) ya sea por el idioma o discapacidad deben ponerse en contacto con la Oficina de Derechos Civiles de ADOT en Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.