; (2) countries whose pharmaceutical and chemical industries are being exploited for development or procurement of precursors of covered synthetic drugs; or (3) major drug-transit countries as defined by the Secretary of State. (d) Authorization of appropriations There is authorized to be appropriated to the Secretary to carry out this section $4,000,000 for each of the fiscal years 2021 through 2025. 4. Exchange program for governmental and nongovernmental personnel to provide educational and professional development on demand reduction matters relating to illicit use of narcotics and other drugs (a) In general The Secretary of State shall carry out an exchange program for governmental and nongovernmental personnel in the United States and foreign countries to provide educational and professional development on demand reduction matters relating to the illicit use of narcotics and other drugs. (b) Program requirements The program required by subsection (a)— (1) shall be limited to individuals who have expertise and experience in matters described in subsection (a); (2) in the case of inbound exchanges, may be carried out as part of exchange programs and international visitor programs administered by the Bureau of Educational and Cultural Affairs of the Department of State, including the International Visitor Leadership Program