摘要:Sustainability is integral for organizations to manage environmental issues. Environmental awareness among stakeholders builds pressure on manufacturers to adopt green human resource management practices (GHRMPs), environmental management system (EMS), and foster organizational citizenship behavior for the environment (OCBE) to improve sustainable performance (SP). This study investigates the mediating effects of OCBE and EMS on the relationship between GHRMP and SP among ISO14001-certified manufacturing firms and SP. The quantitative design employed, and data of 227 respondents were analyzed via the SEM technique using AMOS 24™. Thus, findings revealed that GHRMP is positively related to SP, while OCBE and EMS partially mediated the relationship between GHRMP and SP among ISO14001-certified Malaysian manufacturing firms. This study makes novel academic and practical contributions to green HRM, organizational behavior, and sustainable performance. However, this study also has some limitations.