; or (B) poses a threat to national security. (f) Federal share (1) In general The Federal share of the cost of a program carried out using a grant made under this section shall be not more than 75 percent. (2) In-kind contributions (A) In general Subject to subparagraph (B), the non-Federal share for a program carried out using a grant made under this section may be in the form of in-kind contributions that are directly related to the purpose for which the grant was made. (B) Maximum percentage Not more than 50 percent of the non-Federal share for a program carried out using a grant made under this section may be in the form of in-kind contributions. (g) Administrative costs Of amounts made available to carry out this section for a fiscal year, the Attorney General may use not more than 5 percent for administrative costs. (h) Geographic distribution In making grants under this section, the Attorney General shall— (1) to the extent reasonable and practical, ensure an equitable geographical distribution throughout the United States of programs that provide protection or assistance to witnesses; and (2) give due consideration to applicants from both urban and rural areas. (i) Report to Congress The Attorney General shall submit a report to Congress— (1) not later than December 31, 2019, on the implementation of this section, including any information on programs funded by grants made under this section; and (2) not later than December 31, 2024, on the programs funded by grants made under this section, including on best practice models developed under subsection (e)(2). (j) Authorization of appropriations There is authorized to be appropriated to carry out this section $30,000,000 for each of fiscal years 2019 through 2023.