Construction and Materials

Technician Certification

The Arizona Technical Testing Institute (ATTI) was established in 1996 for the purpose of raising the professional standards and reliability of materials sampling and testing within the state of Arizona through technician certification. Subsequently, federal regulations have been established requiring technicians who perform materials sampling and testing to be certified. ATTI certification programs satisfy these requirements.

The purpose of technician certification through ATTI is to ensure that the technician can demonstrate competency in appropriate Arizona and AASHTO test procedures through actual demonstration of test procedures, written examination and required calculations.

The types of certification offered by ATTI are as follows:

  • ATTI Field Technician Certification: field sampling and testing of soils, aggregates, asphaltic concrete and sampling of asphalt binder
  • ATTI Laboratory Soils/Aggregate Technician Certification: laboratory testing of soils and aggregates
  • ATTI Asphalt Technician Certification: laboratory sampling and testing of asphaltic concrete mixtures

ADOT also recognizes the American Concrete Institute (ACI) certification program for technicians performing sampling and testing activities on Portland cement concrete.

The Grade I ACI Concrete Field Testing Technician Certification is required by all personnel performing Portland cement concrete sampling and testing on ADOT projects.

Documents and Links
Arizona Technical Testing Institute (ATTI) Logo
American Concrete Institute (ACI) Logo

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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 civilrightsoffice@azdot.gov. 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 civilrightsoffice@azdot.gov. Las solicitudes deben hacerse lo más antes posible para asegurar que el Estado tenga la oportunidad de hacer los arreglos necesarios.