The present field study investigated the application of an applied behavior analysis package (consisting of Feedback and Thank You interventions) to one department of a large manufacturing plant for the purpose of increasing safe work behaviors. Safe behaviors increased following the introduction of a Feedback intervention and continued to increase somewhat following the introduction of a Thank You intervention. Safe behaviors decreased when interventions were withdrawn. Responses to a Safety Climate Survey showed employee perceptions did not change as a result of the safety interventions. Results and directions for future research are discussed. / Master of Science