INTERNATIONAL CONVENTION ON TONNAGE MEASUREMENT OF SHIPS, 1969
PROVISIONAL FORMULA TO CALCULATE A REDUCED GROSS TONNAGE
OF OPEN-TOP CONTAINERSHIPS
1 The Maritime Safety Committee, at its sixty-second
session (24-28 May 1993), approved proposals by the Sub-Committee on Stability and Load Lines
and on Fishing Vessels Safety regarding gross tonnage of open-top containerships.
2 To reduce the economic disadvantages caused by the use
of greater gross tonnage in comparison with gross tonnage of conventional containerships for
assessing fees, the Committee agreed to recommend a reduced gross tonnage for open-top
containerships based on a provisional formula as follows:
Reduced GT = GT [1 -
(30000- GT) /
1000 x 0,007 ]
3 The above
formula is subject to review and improvement before adoption by the Assembly of the
Organization. For this purpose, Governments are invited to submit to the Organization
information on open-top containerships in operation and under consideration which would enable
the assessment of final coefficients in the formula, including principal dimensions, gross
tonnage, underdeck and ondeck carrying capacities of containers, deadweight, etc.
4 In the meantime, Administrations may use the above
provisional formula and include in the "Remarks" column of the International Tonnage Certificate
(1969) the following statement:
"In accordance with TM.5/Circ.4, a reduced gross tonnage
may be used for open-top containerships for the sole purpose of calculation of tonnage-based
fees.
The reduced gross tonnage is
................................................................................"