Trailers manufactured after ____ must be equipped with Anti-Lock Braking Systems (ABS). Question Trailers manufactured after ____ must be equipped with Anti-Lock Braking Systems (ABS). Answers 1943 1998 2009 2015 Explanation Trailers and converter dollies manufactured on or after March 1, 1998 are required to have Anti-Lock Braking Systems (ABS). This questions appears in the following tests: Alabama Double Arkansas Combination Colorado Double Colorado Combination New Hampshire Combination New Hampshire Combination North Carolina Combination North Dakota Combination Pennsylvania Combination West Virginia Combination