; table of contents. Sec. 2. Definitions. Sec. 3. Hydrothermal research and development. Sec. 4. General geothermal systems research and development. Sec. 5. Enhanced geothermal systems research and development. Sec. 6. Cost sharing and proposal evaluation. Sec. 7. Advanced geothermal computing and data science research and development. Sec. 8. Geothermal workforce development. Sec. 9. Reporting requirements. Sec. 10. Repeals. Sec. 11. Authorization of appropriations. Sec. 12. International geothermal energy development. Sec. 13. Reauthorization of High Cost Region Geothermal Energy Grant Program. 2. Definitions Section 612(1) of the Energy Independence and Security Act of 2007 ( 42 U.S.C. 17191(1) ) is amended to read as follows: (1) Engineered When referring to enhanced geothermal systems, the term engineered means designed to access subsurface heat, including stimulation and nonstimulation technologies to address one or more of the following issues: (A) Lack of effective permeability, porosity or open fracture connectivity within the heat reservoir. (B) Insufficient contained geofluid in the heat reservoir. (C) A low average geothermal gradient which necessitates deeper drilling, or the use of alternative heat sources or heat generation processes. . 3. Hydrothermal research and development Section 613 of the Energy Independence and Security Act of 2007 ( 42 U.S.C. 17192 ) is amended to read as follows: 613. Hydrothermal research and development (a) In general The Secretary shall carry out a program of research, development, demonstration, and commercial application for geothermal energy production from hydrothermal systems. (b) Programs The program authorized in subsection (a) shall include the following: (1) Advanced hydrothermal resource tools The research and development of advanced geologic tools to assist in locating hydrothermal resources, and to increase the reliability of site characterization, including the development of new imaging and sensing technologies and techniques to assist in prioritization