; (2) a nonprofit organization; or (3) any other entity the Under Secretary determines to be in the public interest. (k) Authorization of appropriations There is authorized to be appropriated to the Secretary of Agriculture to carry out this section $20,000,000,000 to remain available until September 30, 2022. . 4. Tribal broadband assistance program Title VI of the Rural Electrification Act of 1936 ( 7 U.S.C. 950bb et seq.), is amended by inserting after section 606, as added by section 3, the following new section: 607. Tribal broadband assistance program (a) In general The Under Secretary shall make grants, loans, or loan guarantees to entities to— (1) plan, construct, acquire, or improve facilities or equipment for the purpose of providing broadband service on tribal lands; (2) provide broadband service on tribal lands; (3) develop among tribal members technical expertise related to broadband service; and (4) improve the adoption of broadband service by individuals on tribal lands. (b) Application An entity desiring financial assistance under this section shall submit an application to the Under Secretary at such time, in such manner, and containing such information as the Under Secretary may require, including— (1) a description of the ability of the entity to furnish the minimum acceptable level of broadband service for tribal lands; and (2) an assurance that the entity will submit a report, at such time, in such manner, and containing such information as the Under Secretary may specify, that describes— (A) the use by the entity of funds under this section; and (B) the provision by the entity of broadband service on tribal lands using such assistance, including— (i) the number and location of residences and businesses that receive improved broadband service as a result of such assistance