This paper reports the results of research and analysis undertaken by Census Bureau staff. It has undergone a more limited review than official Census Bureau publications. This report is released to inform interested parties of research and to encourage discussion.

Longitudinal monthly data from the Survey of Income and Program Participation (SIPP) enable researchers to examine key dynamic events. This paper reports on recent Census Bureau initiatives that have made the SIPP data easier to use, possible changes in SIPP's design to make it a viable source of official income and poverty statistics, some recent research findings within the context of the overall research program, and some of the remaining challenges the Census Bureau faces.