; (B) researchers producing work based on principles of scientific research related to civic bridgebuilding in the United States and abroad; and (C) Federal agencies and public institutions engaged in or supporting work related to civic bridgebuilding in the United States and internationally. (3) Civic bridgebuilding leader The term civic bridgebuilding leader means an individual who leads civic bridgebuilding programs or efforts. (4) Civic engagement The term civic engagement means an individual or collective action designed to address a public concern such as an unmet human, educational, health care, environmental, or public safety need. (5) Eligible entity The term eligible entity means a nonprofit entity, community- or faith-based organization, institution of higher education (as defined in section 101(a) of the Higher Education Act of 1965 ( 20 U.S.C. 1001(a) )), public institution, or consortium of any such entities. (6) Public institution The term public institution means a library or unit of State, local, or special purpose government. (7) Research base The term research base means any publications that contain observations, analysis, and conclusions based on principles of scientific research with respect to the challenges of political and social polarization in the United States, and practical approaches to strengthen social cohesion, foster a sense of national connection, or improve intergroup relations in divided communities. (g) Authorization of appropriations There are authorized to be appropriated to carry out this section $25,000,000 for each of fiscal years 2025 through 2027. . 3. Table of contents The table of contents in section 1(b) of the National and Community Service Act of 1990 is amended by inserting at the end of the item relating to subtitle H of title I, the following: Part VI—Civic Bridgebuilding Sec. 198T. Office of Civic Bridgebuilding. .