Product Evaluation Program
Approved Products List
The Arizona Department of Transportation (ADOT), through its Product Evaluation Program, maintains the Approved Products List (APL). The list documents products that have been evaluated under ADOT specifications and approved for potential ADOT use. The U.S. government and the state of Arizona do not endorse products or manufacturers.
Acronyms and terms associated with the APL.
| AASHTO | American Association of State Highway and Transportation Officials |
| ASTM | American Society for Testing and Materials |
| C&S | Contracts & Specifications |
| MASH | Manual for Assessing Safety Hardware |
| NCHRP | National Cooperative Highway Research Program |
| NTPEP | National Transportation Product Evaluation Program |
| PCCP | Portland Cement Concrete Pavement |
| TL2 | Test Level 2 as defined in NCHRP Report 350 or MASH |
| TL3 | Test Level 3 as defined in NCHRP Report 350 or MASH |
| TL4 | Test Level 4 as defined in NCHRP Report 350 or MASH |
Application
A product must be evaluated to be considered for the Approved Products List (APL). To apply to the APL, please complete an APL Application and follow the instruction provided.
Product Evaluation Guidelines
The Product Evaluation Program guidelines are found within the 2022 Research Center Program Manual.
