Under the 1997 Kyoto Protocol, economies in transition are eligible for both emissions trading (Article 17) and joint implementation (Article 6). Guiding rules for implementing these mechanisms were decided through the Marrakech Accords in November 2001. These countries may benefit substantially from those mechanisms if they are implemented appropriately. However, with the departure of the USA from the Kyoto Protocol, the likely revenues from international emissions trading for the economies in transition are likely to be limited at least during the first commitment period. A key criterion on whether countries should undertake emissions trading is the comparison of projections of emissions until 2012 with the target under the Kyoto Protocol. For joint implementation, the investment climate and the emission reductions potential of a specific project are more important. Countries that are bound by the Kyoto Protocol need to implement a clear institutional structure, which includes a JI office or a position solely in charge of JI. Even if a country decides not to engage in JI, such an office could help guide possible foreign investors.