The study and promotion of environmental health behaviors, such as recycling, is an emerging focus in public health. This study was designed to examine the determinants of recycling intention on a college campus. Undergraduate students (N=189) completed a 35-item web-based survey past findings and an expanded version of the Theory of Planned Behavior (TPB). Path analytic models were examined with bootstrapping method. The path coefficients revealed that all of the direct paths were statistically significant except the direct path from descriptive norm to behavioral intention. The model explained 49.3% of the variance in recycling intention. The strongest predictors of campus recycling intention were moral obligation and behavioral attitudes. The expanded version of the TPB proved to be a sound theoretical framework to study the determinants of recycling on campus. Overall, the model components had a large effect on recycling intention. Using behavior change theory to understand recycling behavior is prerequisite to evidenced-based recycling interventions. These findings should be used to guide campus recycling interventions.