As a second and more punishing wave of US sanctions hits Iran, the Islamic Republic is dusting off an old playbook for circumventing such penalties and maintaining a crucial level of oil exports and other trade. A new issue brief by Holly Dagres and Barbara Slavin—How Iran Will Cope with US Sanctions—discusses the myriad techniques Iran developed before negotiating the Joint Comprehensive Plan of Action, when sanctions had wider international support. The Islamic Republic is already redeploying many of these techniques, from turning off tracking devices on tankers to co-mingling oil with that of other exporters to the use of barter with key trading partners.