The literature review presented in this chapter describes the DOT certification programs and how they were developed in different ways, in part due to the flexibility found in 23 CFR 637B. Included is ...

There are few things more depressing for an arable farmer than having a load of grain rejected. While losing a premium for low Hagbergs in milling wheat or high nitrogen in malting barley is ...

This chapter addresses the common practices and test methods (standards) that are used for certification programs for the basic material categories of soils and aggregate, asphalt mixture, and ...