Class

The degree of excellence pronounced upon a merchant vessel, according to her construction and the material used. American vessels are classed as A I, A I 1/2, A I3/4, A 2, A 2I/2, and A 3. , and A 3. Vessels classifying under A I and A I 1/2 are considered fit for the transportation of all kinds of cargo and for all voyages; those classifying under A I3/4 and A 2 are considered fit for carrying all kinds of cargo on Atlantic voyages, and such cargo as molasses, oil and sugar on long voyages; while those classifying under A 21/2 and A 3 are deemed fit for the coastwise trade only in the transportation of wood and coals. The class is given for a certain term of years, and expires by limitation, necessitating a new examination or survey of the vessel in order to re-establish the class or secure a new one, and in order to maintain the class assigned the vessel must be submitted to occasional surveys not less than once in two years, and must be re-surveyed for a class in the event of collision, running ashore, loss of masts, etc.