QPL Business Process


All aggregate comes from a specific pit and/or quarry, and each Qualified Products List (QPL) is an approved list that contains producer information, material specifications, a source number for the material and special comments, if applicable. The Pit and Quarry QPL is divided into two (2) separate lists or material identifiers (QPL1 and QPL2). The lists identify the type of material that is being certified and validated for approval. QPL1 represents Fine Aggregate Sources and QPL2 represents Coarse Aggregate Sources.

In order for a producer/vendor to be included on a QPL, they must complete the QPL Business Process. The QPL Business Process is a three-step process that entails the following:

  1. Register a Producer/Vendor

  1. Certify a Producer/Vendor

  1. Approve a Producer/Vendor