for improving such implementation, including with respect to the amount of funding provided to the Territory of Guam pursuant to grant under this section. (f) Conditional limitation on Secretary The Secretary of Homeland Security may not obligate or expend any Federal funds for official travel, except for such travel to and from the Territory of Guam, if the following conditions are satisfied: (1) Funds are appropriated or otherwise made available to carry out this section. (2) The Secretary does not implement this section before the date that is 180 days after the appropriation or availability, as the case may be, of such funds. (g) Definitions In this section, the term alien has the meaning given such term in section 101 of the Immigration and Nationality Act ( 8 U.S.C. 1101 ). (h) Authorization of appropriations There is authorized to be appropriated $500,000 for each of fiscal years 2024 through 2034 to carry out this section.