42 C.F.R. § 68.13
Program participants who breach their Loan Repayment Program Contracts will be subject to the applicable monetary payment provisions set forth at section 338E of the Act (42 U.S.C. 254o). Payment of any amount owed under section 338E of the Act shall be made within one year of the date the participant breached his or her Loan Repayment Program Contract, unless the NIH specifically authorizes a longer period. Terminations will not be considered a breach of contract in cases where such terminations are beyond the control of the participant as follows:
(b) Occasionally, a participant's research assignment or funding may evolve and change to the extent that the individual is no longer engaged in approved research. Similarly, the research needs and priorities of the IC and/or the NIH may change to the extent that a determination is made that a health professional's skills may be better utilized in a nonresearch assignment. Normally, job changes of this nature will not be considered a breach of contract on the part of either the NIH or the participant. Under these circumstances, the following will apply: