Rehabilitation or employment training or job placement made pursuant to any program of rehabilitation or job development and placement operated by a county welfare department or by any state agency shall not be considered completed, and the recipient shall be considered to remain unemployed, until such time as the recipient receives from his earnings an income equivalent to the amount of income which he and his family are entitled to receive pursuant to provisions of this chapter.
This section shall be operative only on a demonstration project basis in a single, urban county selected by the department, and only during such time as the Secretary of Health, Education and Welfare has waived compliance with Section 402 of the Social Security Act as permitted by Section 1115 of that act.