We are revising the rules to automatically adjust each year, based on any increases in the national average wage index, the average monthly earnings guideline we use to determine whether work done by persons with impairments other than blindness is substantial gainful activity; provide that we will ordinarily find that an employee whose average monthly earnings are not greater than the "primary substantial gainful activity amount," has not engaged in substantial gainful activity without considering other information beyond the employee's earnings; increase the minimum amount of monthly earnings and the minimum number of self-employed work hours in month that we consider shows that a person receiving title II Social Security benefits based on disability is performing or has performed "services" during a trial work period, and automatically adjust the earnings amount each year thereafter; increase the maximum monthly and yearly Student Earned Income Exclusion amounts we use in determining Supplemental Security Income (SSI) Program eligibility and payment amounts for student children, and automatically adjust the monthly and yearly exclusion amounts each year thereafter. We are revising these rules as part of our efforts to encourage individuals with disabilities to test their ability to work and keep working. We expect that these changes will provide greater incentives for many beneficiaries to attempt to work or, if already working, to continue to work or increase their work effort.