Sec. 301 Establishment of Work Incentive Benefit System
“(l) Work Incentive Benefit System
“(1) The Commissioner shall establish a Work Incentive Benefit System in accordance with the provisions of this subsection, pursuant to which an eligible individual entitled to a disability insurance benefit under this section may elect to return to employment and receive an adjusted disability insurance benefit amount (as determined pursuant to paragraph (3)).
“(2)
“(A) For purposes of this subsection, the term eligible individual means an individual who has been entitled to a disability insurance benefit for period of not less than 9 months preceding participation in the Work Incentive Benefit System.
“(B) Participation by an eligible individual in the Work Incentive Benefit System shall be suspended if such individual has no reported wages or self-employment income for the 4 preceding calendar quarters (as defined in section 213(a)(1)).
“(3)
“(A) For purposes of subsection (a)(2), the amount of the disability insurance benefit provided to an eligible individual who is participating in the Work Incentive Benefit System for any month shall be equal to—
“(i) in the case of an individual who has average monthly earnings (as determined under subparagraph (B)) equal to or less than $50, the amount otherwise applicable under subsection (a)(2), or
“(ii) in the case of an individual who has average monthly earnings greater than $50, an amount equal to the sum of—
“(I) an amount (not less than zero) equal to—
“(aa) the enhanced benefit amount (as determined under subparagraph (C)) for such individual, minus
“(bb) the quotient obtained by dividing the average monthly earnings for such individual by 3, and
“(II) the work incentive adjustment amount (as determined under subparagraph (D)) for such individual.
“(B)
“(i) The average monthly earnings for an eligible individual shall be equal to the quotient of—
“(I) the total amount of wages and self-employment income for such individual in any eligible months during the 2 calendar quarters (as defined in section 213(a)(1)) that precede the most recently completed calendar quarter, divided by
“(II) the total number of eligible months during such 2 calendar quarter period.
“(ii) For purposes of clause (i), the term eligible month means any month subsequent to the month in which an eligible individual became entitled to a disability insurance benefit.
“(C) The enhanced benefit amount for an eligible individual shall be equal to 106.7 percent of the primary insurance amount for such month for such individual.
“(D)
“(i) The work incentive adjustment amount for an eligible individual shall be equal to the product of the average monthly earnings for such individual multiplied by the applicable work incentive subsidy rate (as determined in accordance with the table under clause (iii), based on the applicable work incentive step for such individual).
“(ii) For purposes of the table under clause (iii), the work incentive step for an eligible individual shall be equal to the quotient obtained by dividing—
“(I) the average monthly earnings for such individual, by
“(II) an amount equal to the quotient obtained by dividing the primary insurance amount for such month for such individual by 5.
“(iii) The work incentive subsidy rate shall be determined by linear interpolation between the amounts established under the following table:
“(4) For purposes of paragraph (3)(B), wages and self-employment income of an individual shall be determined based on relevant information for such individual as provided by the State agency responsible for the administration of State unemployment compensation law.
“(5) For purposes of an eligible individual who is participating in the Work Incentive Benefit System under this subsection, any services performed or earnings derived from services during the period of such participation shall not be considered for purposes of demonstrating an individual's ability to engage in substantial gainful activity under subsection (d)(4) and shall not be considered substantial gainful activity for purposes of subsection (e).
“(6) For purposes of this title, the disability insurance benefit received by an eligible individual under this subsection shall not be applied for purposes of determining any monthly benefits payable to any other individuals entitled to benefits for any month based on the wages and self-employment income of such individual.”