to public or other nonprofit institutions of higher learning, and to public or other nonprofit agencies and organizations engaged in research or child-welfare activities, for special research or demonstration projects in the field of child welfare which are of regional or national significance and for special projects for the demonstration of new methods or facilities which show promise of substantial contribution to the advancement of child welfare;

to State or local public agencies responsible for administering, or supervising the administration of, the plan under this part, for projects for the demonstration of the utilization of research (including findings resulting therefrom) in the field of child welfare in order to encourage experimental and special types of welfare services; and

to public or other nonprofit institutions of higher learning for special projects for training personnel for work in the field of child welfare, including traineeships described in section 628a 1 of this title with such stipends and allowances as may be permitted by the Secretary; and

to participate in training at a public or private nonprofit child welfare agency on a regular basis (as determined by the Secretary) for the period of the traineeship;

to be employed for a period of years equivalent to the period of the traineeship, in a public or private nonprofit child welfare agency in any State, within a period of time (determined by the Secretary in accordance with regulations) after completing the postsecondary education for which the traineeship was awarded;

to furnish to the institution and the Secretary evidence of compliance with subparagraphs (A) and (B); and

if the recipient fails to comply with subparagraph (A) or (B) and does not qualify for any exception to this subparagraph which the Secretary may prescribe in regulations, to repay to the Secretary all (or an appropriately prorated part) of the amount of the stipend, plus interest, and, if applicable, reasonable collection fees (in accordance with regulations promulgated by the Secretary);

enter into agreements with child welfare agencies for onsite training of recipients;

permit an individual who is employed in the field of child welfare services to apply for a traineeship with a stipend if the traineeship furthers the progress of the individual toward the completion of degree requirements; and

develop and implement a system that, for the 3-year period that begins on the date any recipient completes a child welfare services program of study, tracks the employment record of the recipient, for the purpose of determining the percentage of recipients who secure employment in the field of child welfare services and remain employed in the field.