This guide explains the labor efficiencies design features in Xactimate, introduced by Verisk starting with version 2002. The design was developed in response to customer feedback from service providers and insurance carriers seeking improved accuracy in estimating labor economies of scale across various jobs. The document outlines the expanded labor efficiency architecture, which includes new options for estimating different job sizes and conditions. It details three main efficiency models: Restoration/Remodel/Service, Large Restoration/Remodel, and Total Rebuild or Similar. Each model is tailored to specific job characteristics, such as site occupancy and accessibility. Additionally, the guide discusses considerations for selecting the appropriate efficiency model based on factors like job complexity and required labor. It also addresses labor minimums and accurate pricing strategies to ensure estimators can effectively manage labor costs in their estimates.