- Products that are not covered by Highway Division specifications and thus require evaluation on the basis of need, performance, and cost-competitiveness.
- Products that have not been submitted for approval. Submit a product.
- Products required to meet industry standards (i.e. UL approved; AWWA approved; etc.)
- Products that need field sampling and testing performed in accordance with Guide Schedule for Sampling and Testing Materials.
- Tested products that do not conform to the specification requirements.
The Research and Materials section does not qualify the following materials.