This paper compares the guidance presented in AACE International’s Recommended Practice 29R-03, Forensic Schedule Analysis, with the guidance presented in ASCE’s Standard 67-17, Schedule Delay Analysis, which was published in August 2017. The paper presents a brief background on the development of consensus documents by technical organizations and the relationship of consensus documents to expert witness testimony. The paper then compares the guidance presented in the two documents on topics including the endorsement or rejection of specific techniques, analysis of concurrent delay, negative float and offsetting delay, and schedule corrections during analysis.