Proposed on November 8, 2006, signed on December 30, 2006: It makes the Ust-Orda Buryat Autonomous District part of the Irkutsk Oblast.
A proposal was made on November 8, 2006, which was later ratified on December 30, 2006. As a result, the Ust-Orda Buryat Autonomous District is now part of the Irkutsk Oblast.