1. Short title This Act may be cited as the Witness Security and Protection Grant Program Act of 2018 . 2. Witness protection grant program (a) Definitions In this section— (1) the term applicant means a State, tribal, or local government that applies for a grant under this section; and (2) the terms serious drug offense and serious violent felony have the meaning given those terms in section 3559(c)(2) of title 18, United States Code. (b) Grants required Subject to subsection (j), the Attorney General shall make competitive grants to State, tribal, and local governments to establish or maintain programs that provide protection or assistance to witnesses in court proceedings involving— (1) a homicide, serious violent felony, or serious drug offense