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.
If itâs through a passport office, it may take up to six weeks (3 weeks if expedited). You should apply in US Department of State Passport Agency, if you have to travel within 2 weeks and want a foreign visa within a four weeksâ time span. Those who doubt how long do passports take and how to get it earlier, apply at some regional agency to get it done faster.