Each Category 6 funding program has specific eligibility criteria for prioritizing and selecting projects, which will be discussed in detail (See Chapter 2, Sections 3-6). In general, the majority of the eligibility criteria are captured within the Bridge Inspection Database; therefore, a bridge must be in the Bridge Inspection Database to be considered for funding with the exception of Railroad Grade Separation (RGS) funded projects. These projects consist of highway-railroad atgrade crossings and railroad underpasses. Railroad underpasses are in the Bridge Inspection Database for documented vertical clearances over public roadways.