This book describes a slamming strength assessment procedure for vessels. Typically, there are three types of slamming loads on commercial vessels: bottom slamming, bow flare slamming, and stern slamming depending upon the hull geometry at the bow and stern. Upon verifying compliance with the requirements in this book, optional notations may be assigned to the vessel. A fundamental requirement of Class is that the scantlings of the hull structure are to be in accordance with the criteria as specified by Class. The results of this book are therefore not to be used to reduce the basic scantlings obtained from the application of the Class rules. That is, if the results from this book indicate the need to increase any basic scantlings, the increased scantlings are to be implemented above the Class Rule requirements.