The primary objective of this study is to find the role of different policies on supply chain performance (SCP). To achieve this objective, quality assurance policies (QAP) and continuous process improvement (CPI) are selected as independent variables. | Critical evaluation of policies in supply chain performance Quality assurance continuous process improvement and environmental regulation and policies Uncertain Supply Chain Management 7 2019 793 804 Contents lists available at GrowingScience Uncertain Supply Chain Management homepage uscm Critical evaluation of policies in supply chain performance Quality assurance continuous process improvement and environmental regulation and policies Andriansyah Andriansyaha Taufiqurokhman Taufiqurokhmana and Ismail Suardi Wekkeb a Universitas Prof. Dr. Moestopo Beragama Indonesia b Sekolah Tinggi Agama Islam Negeri STAIN Sorong Indonesia CHRONICLE ABSTRACT Article history The primary objective of this study is to find the role of different policies on supply chain Received November 4 2018 performance SCP . To achieve this objective quality assurance policies QAP and Received in revised format continuous process improvement CPI are selected as independent variables. Additionally the December 20 2018 moderating effects of environmental regulations and policy ERP are examined between Accepted January 2 2018 Available online various policies and SCP. ERP is taken as moderating variable because the role of ERP in January 2 2019 logistics is crucial. Logistics transport has serious effect on environment due to the emission Keywords of CO2. Primary data are collected from supply chain companies of Indonesia. Three hundred Supply chain performance questionnaires are used in this study and they are analyzed through statistical tests. Conclusion Quality assurance policies of the study shows that QAP and CPI had major role in SCP. Better implementation of QAP Continuous process and CPI increase the SCP among Indonesian supply chain companies. Moreover ERP is a improvement moderating variable between the relationship of QAP and CPI and SCP. Therefore Indonesian Environmental regulations supply chain companies should enhance the policies related to quality .