As the classification profession ev

As the classification profession evolved, the practice of assigning different classifications has been superseded, with some exceptions. Today a vessel either meets the relevant Class Society’s Rules or it does not. As a consequence it is either 'in' or 'out' of 'class'. However, each of the Classification Societies has developed a series of notations that may be granted to a vessel to indicate that it is in compliance with some additional voluntary criteria that may be either specific to that vessel type or that are in excess of the standard classification requirements.