Is this a DOT project? If so, refer to their specifications. Even if it isn't a DOT project you can still compare your submittals with DOT specs.
My projects are typically with a DOT although a few years ago I had a project with a private company that included some roadwork. The specs referred the contractor to PennDoT.
As LHA wrote, The Green Book is a design guide - geometrics, traffic, guide rail, etc - it doesn't get into pavement design. AASHTO has books on pavement design as do most DOT's.