The National Defense Authorization Act (Public Law 108-136, November 24, 2003) approved a new pay system which eliminated the six ES pay levels in favor of an open pay range (that is, a "payband") with a minimum base salary equivalent to 120 percent of the rate for grade 15, step 1, of the General Schedule to a base salary limit of Level III of the Executive Schedule. For more information, click.
Career SES members may receive performance awards from 5 percent to 20 percent of basic pay, based on performance during the annual appraisal period. The President may award career members the rank of Distinguished Executive with a lump-sum payment of 35 percent of their base pay, and a Meritorious Executive would receive a lump-sum payment of 20 percent of their base pay annually for sustained accomplishments over a period of at least three years. Basic pay and other compensation (e.g., awards and allowances) during a calendar year may not exceed pay for Executive Schedule level I. Any excess amount is paid at the start of the next calendar year.
Please see the following links for more assistance: