This study examined the relationships between three organizational commitment components, as well as job satisfaction (including specific facet measures), and two separate forms of organizational citizenship behavior. Factor analyses provided support for a three dimensional model of organizational commitment (affective, continuance, and normative commitment components). Factor analyses also provided support for OCBI (citizenship behaviors directed toward other individuals) as a specific type of citizenship behavior, while OCBO (citizenship behaviors which benefit the general organization) did not obtain such support. Raw score correlations indicated varying degrees of support for the hypotheses. IHypothesis 1 was supported in that job satisfaction was significantly and positively related to co-worker rated and supervisor rated OCBI. In terms of facet measures, satisfaction with work, supervision, and coworkers were also significantly and positively related to co-worker and supervisor rated OCBI. Satisfaction with pay was significantly and positively related to supervisor rated OCBI only. Satisfaction with promotional opportunities was not significantly related to either measure of OCBI. Contrary to the part of Hypothesis 2 which predicted no relationship between affective commitment and OCBI, a significant and positive relationship was found for co-worker and supervisor rated OCBI Contrary to the part of Hypothesis 3 which predicted a significant and negative relationship between continuance commitment and OCBI, no significant relationship was obtained for either measure ofOCBI. Normative commitment was significantly and positively related to co-worker rated OCBI only.