amount of the increase in the Consumer Price Index for All Urban Consumers, if any, for purposes of this section shall be determined based on estimates prepared by the Congressional Budget Office. 3. CBO notification to Congress (a) In general The Congressional Budget Office shall notify Congress if the annualized rate of increase in the Consumer Price Index for All Urban Consumers is greater than 4.5 percent. (b) Submission The Congressional Budget Office may submit the certification required under subsection (a) as part of another report required to be submitted to Congress.