The purpose of this manual is to provide guidance for the electrical contractor and subcontractor on presenting loss of labor efficiency claims. Following these guidelines will enhance the likelihood of recovering the additional labor costs. The emphasis in this manual (which includes a CD) is on educating the owner or general contractor as to the causes and consequences of labor inefficiencies. Another essential emphasis is on establishing cause-effect relationships so as to substantiate the labor overrun. The purpose of this manual is not to explain how to calculate damages.