Question School buses: Answers Are never equipped with ABS. Are only equipped with ABS if students who are younger than 10 years of age will be on the bus. May be equipped with ABS. Explanation In general, school buses manufactured after 1998 or 1999 must be equipped with an Anti-Lock Braking System (ABS). Many older buses are equipped with ABS as well. Take a FREE Practice Test Now This questions appears in the following tests: Arkansas Bus , Hawaii Bus , New Mexico Bus , Oregon Bus ,