The Decennial Management Division (DMD) contracted the Statistical Research Division (SRD) to conduct pre-testing on the Non-response Follow-up (NRFU) instrument. SRD began by testing the 2006 Census Test version of the NRFU. These findings are reported in Hunter (2005) and Childs, Gerber, Carter, and Beck (2006). SRD then revised the NRFU questions based on the findings of these pretests and in consultation with Betsy Martin, our Senior Survey Methodologist, and the Population Division (POP). This report summarizes the findings and recommendations from the cognitive testing of the revised NRFU. The results and recommendations from Round 3 found in this report will inform the upcoming 2008 Census Dress Rehearsal and the 2010 Census.