Based on changes in motivation thought to occur across the lifespan, we investigated whether age would moderate the relationship between proactive personality and three training-related variables: training motivation, perceived career development from training, and training behavioral intentions. A survey was completed by 252 municipal government employees. As hypothesized, participants' age moderated the relationship between proactive personality and these outcomes. Specifically, there was generally a more positive relationship between proactive personality and the outcomes for younger participants than for older participants. Our discussion focuses on implications for training in organizations and recommendations for practice. Copyright © 2009 John Wiley & Sons, Ltd.