RULES ADOPTED AT INTERNATIONAL CONFERENCE. 13 



In Convention Article 66 — 



"The High Contracting Parties which intend the Convention to apply to the 

 whole of their colonies, possessions and protectorates, or to one or to some of these 

 countries, shall declare this intention either at the time of signing these presents or 

 subsequently." 



This also seems to indicate that vessels in certain coastwise trade routes may 

 be affected by the Convention. 



We may therefore proceed to apply the Convention requirements to some types 

 of vessels operated in the coastwise trade. In case the members have not a copy of 

 Senate Document No. 463 at hand it has been considered advisable to include here- 

 with a copy of the more important Convention Rules relating to the Subdivision of 

 Vessels. 



CONSTRUCTION. 



Article V. — Definitions. 



The meaning of the principal technical and other expressions contained both 

 in the Convention and in these regulations, under the heading of Construction, is as 

 follows : — 



1. The load waterline is the waterline used in determining the subdivision of 

 the vessel. 



2. The length of the vessel is the extreme length at the load waterline. 



3. The breadth of the vessel is the extreme width from outside of frame to 

 outside of frame at or below the load waterline. 



4. The bulkhead deck is the uppermost continuous deck to which all trans- 

 verse watertight bulkheads are carried. 



5. The margin line is a line drawn parallel to the bulkhead deck at side line, 

 and 3 inches below the upper surface of that deck at side. 



6. The draught is the vertical distance from the top of keel amidships to the 

 load waterline. 



7. The freeboard is the vertical distance from the load waterline to the margin 

 line amidships. 



8. The depth of the vessel is the sum of the draught and freeboard as above 

 defined. 



9. The sheer of the bulkhead deck at any point is the vertical distance between 

 the beam at side line at that point and a line drawn parallel to the load waterline 

 at the height of the beam at side line amidships. 



10. If block coefficient of fineness of displacement to load waterline is used, 

 this coefficient shall be determined as follows: — 



Volume of displacement to molded lines 

 Length X Breadth X Draught 



