In this paper, we highlighted the importance of integrating environmental goals into the production system. We recommend the establishment of closed-loop production systems in a supply chain level. To realize closed-loop production systems, we introduced the concept of sustainable supply chain networks. With a SSCN, it is possible to shift successfully from a flow economy to a circular economy by combining environmental and economic issues, thereby improving eco-efficiency.
Standard passport processing generally takes between four to six weeks, but it can take longer during peak travel times.
Routine Service â If youâre a United States citizen applying for a passport, it will likely take you anywhere from four to six weeks for the government to process your passport. Keep in mind that this processing time does not include the time it takes for mail to get from one place to another.