2011 cost-of-living adjustments; retirements plans, etc. This notice sets forth certain cost-of-living adjustments effective January 1, 2011, applicable to the dollar limitations on benefits and contributions under qualified retirement plans. The limitations that are adjusted by reference to § 415(d) generally will remain unchanged for 2011. Other limitations applicable to deferred compensation plans are also unchanged for 2011. This notice also contains cost-of-living adjustments for several pension-related amounts in restating the data in IR-2010-108 issued October 28, 2010.