OMB Memorandum: Identifying Low-Priority Agency Programs

"Your agency is required to identify the programs and subprograms that have the lowest impact on your agency's mission and constitute at least five percent of your agency's discretionary budget. This information should be included with your FY 2012 budget submission, but is a separate exercise from the budget reductions necessary to meet the target for your agency's FY 2012 discretionary budget request."