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Transnistria border customs dispute

On 3 March 2006, Ukraine introduced new customs regulations on its border with Transnistria. Ukraine declared that it would import goods from Transnistria only with documents processed by Moldovan customs offices as part of the implementation of the joint customs protocol agreed between Ukraine and Moldova on 30 December 2005. Transnistria and Russia termed the act an "economic blockade".

The United States, the European Union, and the OSCE approved the Ukrainian move, while Russia saw it as a means of political pressure. On 4 March, Transnistria responded by blocking the Moldovan and Ukrainian transport at the borders of Transnistria. The Transnistrian block was lifted after two weeks. However, the Moldovan/Ukrainian block remains in place and holds up progress in status settlement negotiations between the sides. In the months after the regulations, exports from Transnistria declined drastically. Transnistria declared a "humanitarian catastrophe" in the region, while Moldova called the declaration "deliberate misinformation". Cargoes of humanitarian aid were sent from Russia in response.