No passenger train on any railroad shall be run without an air brake, or some equally effective appliance for controlling the speed of trains, which may be applied by the engineer to each car composing the train, and which shall at all times be kept in good condition and ready for use at the discretion of the engineer.
Del. Code tit. 2, § 1814
Railroad car brakes
59 Del
Official source: Delaware Code Online. Reproduced from public-domain Delaware statutes; confirm against the official source for the current text. Not legal advice.