(1)當船舶主機故障時，負責航行當值之甲級船員應立即通知船長，但如果情況需要時，為了船舶之安全，也應毫不猶豫地採取立即行動。

(2) Any alteration of course and/or speed to avoid collision shall, if the circumstances of the case admit, be large enough to be readily apparent to another vessel observing visually or by radar. A succession of small alterations of course and/or speed should be avoided.