sed the behavior analysis approach to improve worker safety in 2 departments in a food manufacturing plant. Desired safety practices were identified, permitting construction of observational codes suitable for observing 142 workers' on-the-job performance over a 25-wk period. The intervention consisted of an explanation and visual presentation of the desired behaviors, as well as frequent, low-cost reinforcement in the form of feedback. A within-S (multiple baseline) design was used. Employees in the 2 departments substantially improved their safety performance from 70% and 78% to 96% and 99%, respectively, after the staggered introduction of the program. During the reversal phase, performance returned to baseline (71% and 72%). It is concluded that the intervention, particularly the frequent feedback, was effective in improving safety performance. Not only did employees react favorably to the program, but the company was later able to maintain the program with a continuing decline in the injury frequency rate. Results suggest that behaviorally defining and positively reinforcing safe practices is a viable approach to occupational accident reduction. (53 ref) (PsycINFO Database Record (c) 2012 APA, all rights reserved)