We are revising the rules for determining when earnings demonstrate the ability to engage in substantial gainful activity (SGA). This rule change applies to Social Security disability benefits provided under title II of the Social Security Act (the Act) and Supplemental Security Income (SSI) benefits based on disability under title XVI of the Act. (Eligibility for benefits under titles II and XVI also confers eligibility for related Medicare and Medicaid benefits under titles XVIII and XIX of the Act.) Specifically, we are raising from $500 to $700 the average monthly earnings guidelines used to determine whether work done by persons with impairments other than blindness is SGA. We are raising this level as part of efforts to encourage individuals with disabilities to attempt to work, and to provide an updated indicator of when earnings demonstrate the ability to engage in SGA. This increase reflects our assessment of the amount that roughly corresponds to wage growth since the last increase in 1990.