Product Evaluation

How long does APL approval last?

Once approved, products remain on the APL for five years or until ADOT or the applicant deems the product unacceptable, whichever comes first.

Will AASHTO’s National Transportation Product Evaluation Program (NTPEP) datamine test data be acceptable for my application?

NTPEP test data are acceptable if the ADOT specification for your product category requires NTPEP testing. Please review the specifications to determine whether this applies to your product. When applying, please specify where that data is stored in the NTPEP datamine. For product categories with requirements not covered by the NTPEP testing, please provide independent test data from an accredited lab.

How can I expedite the evaluation process?

  • Applicants can ensure that they have read the ADOT Specifications and have identified the appropriate category and subcategory for their product, that testing has been performed within the last five years by an accredited lab, and that they submit all required materials within stated deadlines.
  • Applicants should review the posted evaluation tables that contain the requirements for a number of APL Categories. If your category does not have a table, please reach out to the APL mailbox at [email protected].

If my product is not on the APL, will ADOT still allow the use of my product?

  • Yes, unless otherwise specified in the Special Provisions, products not appearing on the Approved Products List at the time of the bid opening may be used if they meet the requirements of the contract documents. Further requirements are found in section 106.14 Approved Products List of the standard specifications.