Prepared by the ASCE Standards Committee including Robert M. D’Onofrio (CPMI) and Todd Mayo (CPMI)

Identifying, Quantifying, and Proving Loss of Productivity, ANSI/ASCE/CI 71-21, describes key labor costs as typically the most variable, and a major component of, overall project cost. It provides guidance on tracking and measuring labor productivity to help prevent, mitigate, and recover cost overruns and to address loss of productivity disputes and claims, which are increasing in frequency and magnitude. The standard is available electronically in ASCE’s library.