; and (2) any Federally supported loan forgiveness program, including under section 338B, 338I, or 846 of this Act, or section 428J, 428L, 455(m), or 460 of the Higher Education Act of 1965. (f) Breach (1) Liquidated damages formula The Secretary may establish a liquidated damages formula to be used in the event of a breach of an agreement entered into under subsection (a). (2) Limitation The failure by a specialty medicine physician to complete the full period of service obligated pursuant to such an agreement, taken alone, shall not constitute a breach of the agreement, so long as the physician completed in good faith the years of service for which payments were made to the physician under this section. (g) Reports to Congress Not later than 5 years after the date of enactment of this section, and not less than every other year thereafter through fiscal year 2030, the Secretary shall report to Congress on— (1) the practice location of physicians participating, or who have participated, in the loan repayment program under this section; and (2) the impact of the loan repayment program under this section on the availability of specialty medicine services in the United States in rural communities experiencing a shortage of specialty medicine physicians. (h) Definition In this section, the term specialty medicine physician means a physician practicing in a specialty identified in the December 2008 report of the Health Resources and Services Administration entitled The Physician Workforce: Projections and Research into Current Issues Affecting Supply and Demand as a specialty whose baseline projected demand exceeds its projected supply for the period of 2005 through 2020. (i) Authorization of appropriations To carry out this section, there are authorized to be appropriated such sums as may be necessary for fiscal years 2021 through 2030. .