1. Short title This Act may be cited as the Strengthening Aviation Security Act of 2018 . 2. Use of risk-based strategies by Federal Air Marshal Service (a) In general Subsection (a) of section 44917 of title 49, United States Code, is amended— (1) in paragraph (7), by striking and after the semicolon at the end; (2) in paragraph (8), by striking the period at the end and inserting a semicolon; and (3) by adding at the end the following new paragraphs: (9) shall require the Federal Air Marshal Service to utilize a risk-based strategy when allocating resources between international and domestic flight coverage, including when initially setting its annual target numbers of average daily international and domestic flights to cover; (10) shall require the Federal Air Marshal Service to utilize a risk-based strategy to support domestic allocation decisions; (11) shall require the Federal Air Marshal Service to utilize a risk-based strategy to support international allocation decisions