; 16 U.S.C. 1701–1706 ), from the number of such participants in fiscal year 2020. (2) Reports to Congress The Secretaries of Agriculture and the Interior shall submit to Congress, not later than December 31 of each of the years 2023, 2026, 2029, and 2031, a report on the level of participation in the Youth Conservation Corps since the end of fiscal year 2020 and on the efforts taken to achieve the goal described in paragraph (1). (c) Youth challenge program (1) Expansion The Secretary of Defense shall take the necessary steps to double, by December 31, 2031, the number of participants in the National Guard Youth Challenge Program established under section 509 of title 32, United States Code, from the number of such participants in fiscal year 2020. (2) Reports to congress The Secretary of Defense shall submit to Congress, not later than December 31 of each of the years 2023, 2026, 2029, and 2031, a report on the level of participation in the National Guard Youth Challenge Program since the end of fiscal year 2020 and on the efforts taken to achieve the goal described in paragraph (1). (d) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this section. 323. National service public awareness campaign (a) In general The Chief Executive Officer of the Corporation for National and Community Service shall carry out a public awareness campaign to educate individuals likely to provide the greatest influence on youth, including parents, grandparents, teachers, guidance counselors, clergy, and coaches, on opportunities for youth to engage in national service, the impacts of national service, and ways to encourage youth to provide such service. Funds made available to carry out this subsection may be used to identify best practices, carry out national outreach and education campaigns, produce and make available materials for schools and students from kindergarten through grade 12, facilitate access to national service information and opportunities, and