Most cats entering shelters are euthanized. This study used behavioral assessments to determine how quickly a cat acclimated to its new environment and whether enrichment eased this transition. Twenty-five cats at 2 municipal shelters were evaluated with 2 separate standardized behavioral assessments at 3separate times, beginning the day after entering the shelter. One behavioral assessment included an in-cage evaluation, whereas the other assessment involved a stepwise combined in- and out-of-cage evaluation. Eleven of the cats were given a cardboard box to hide in and a toy in the cage, whereas 14cats were not given these objects. Our results suggest that cats need 72hours to achieve optimum behavioral scores and a decrease in stress levels based on the 2 separate evaluations. The tests were correlated in their outcomes. © 2013 Elsevier Inc.