The aim of this study is to identify the influence of social dimensions of the work environment and the employees' felt responsibility on the transfer of safety training. We tested a model in which responses and reactions from safety players such as coworkers, supervisors, and safety professionals are positively related to the transfer of training (TT), through the mediating effect of the employees' felt responsibility and the moderating influence of supervisor support and sanctions. A two-time data collection was implemented among blue-collar employees, all low qualified, from four city councils who attended a fundamental safety training program delivered by in-house safety trainers, all safety professionals (n = 203). Data analysis revealed that (a) supervisors' safety responses, coworkers' safety responses, and safety professionals' reactions positively influenced the TT, an effect (b) mediated by employees' felt responsibility and (c) moderated by supervisor sanctions, but not by supervisor support. The results suggest that high sanctions enhance the positive effect of high self-responsibility on TT, and, importantly, aggravate the negative effect of low self-responsibility on TT. This is the first study to empirically test both the influence of felt responsibility and the safety professionals' reactions in the transfer process. Research should continue to examine the former construct's influence on the transfer process including, for example, its effect on supervisor support, and the latter as a safety-related social dimension variable of the work environment. (PsycINFO Database Record (c) 2019 APA, all rights reserved).