The duration of time each drifter remained over Georges Bank (i.e., its residence time) is of special interest to understanding the distribution, transport, and survival of larval cod and haddock on the Bank. We provide here estimates of the residence time of the GLOBEC drifters within a region enclosed by the 100-m isobath around the Bank and 69° 24 W, which bisects the Great South Channel to the west of the Bank. The mean residence time of this region was 63 days with a standard deviation of 48 days. The maximum individual residence time was 200 days. In general, monthly mean residence time increased from winter (January/February) to summer (August/September). Monthly mean residence times during January-April,1995 were much greater than during 1996-99. The mean residence time of drifters passing through the eastern flank of the Bank, defined by the U.S./Canada border and the 100-m isobath, was 32 days. Shown below is the 1999 residence time for the Bank. Mean residence time (days) for each deployment set are shown as red dots. Red pluses show the mean monthly residence time when no drifters were deployed. Thick blue lines are recirculating drifters.