Articles
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Statutory Documents - IMO Publications and Documents - Circulars - Tonnage Measurement - TM.5/Circular.6 – Unified Interpretations Relating to the International Convention on Tonnage Measurement of Ships, 1969 - Annex – Unified Interpretations Relating to the International Convention on Tonnage Measurement of Ships, 1969 - Articles

Articles

  Article 2 Definitions

  Article 2(8) Length

  • A.2(8)-1 When a ship does not have a rudder stock, the length should be taken as 96% of the total length on a waterline at 85% of the least moulded depth measured as defined in regulation 2(2).

  • A.2(8)-2 The 96% overall length should be used for ships that do not have a clearly defined stem or stern, such as column-stabilized units, submersibles, floating docks, and similar ships.

  • A.2(8)-3 In the definition of "length" in article 2(8), the term "least moulded depth" is the vertical distance measured from the top of the flat plate keel (or equivalent lower terminus as described in regulation 2(2)) at the lowest point along the keel's length to the horizontal line that is tangent to the underside of the upper deck at the ship's side (or equivalent upper terminus as described in regulation 2(2)) at the lowest point along the upper deck's length. For the purpose of this definition, the ship is considered to be trimmed on a waterline parallel to the design waterline.

  • A.2(8)-4 Where more than one rudder is fitted, the aftermost rudder stock is the rudder stock to be considered when determining the length.

  Article 3 Application

  Article 3(2)(d) Tonnage applicability to "existing" ships

  • A.3(2)(d)-1 "The term "alterations or modifications which the Administration deems to be a substantial variation in their existing gross tonnage" should be interpreted to mean "an increase or decrease of more than 1% in the gross tonnage calculated in accordance with the 1969 Tonnage Convention.""

  Article 9 Form of certificate

  Article 9(2) Model in annex II

  • A.9(2)-1 The "Date" shown on the front of the International Tonnage Certificate (1969) refers to the year when the keel was laid or the ship was at a similar stage of construction (article 2(6)) or the ship underwent alterations or modifications as defined in article 3(2)(b) but when the year of construction or alteration or modification is 1982 or 1994, the month and day should also be described.

  • A.9(2)-2 Information inserted in the "location" columns on the reverse of the International Tonnage Certificate (1969) should not be detailed.

  • A.9(2)-3 The phrase "Date and place of original measurement" should refer to the issue of the original International Tonnage Certificate (1969) and should have no reference to measurement under pre-existing national systems.

  • A.9(2)-4 The phrase "Date and place of last previous remeasurement" should refer to the date and place of issue of the last International Tonnage Certificate (1969).

  Article 10 Cancellation of certificate

  Article 10(2) Cancellation upon flag transfer

  • A.10(2)-1 Ships holding an International Tonnage Certificate (1969), which do not comply with agreed interpretations of the provisions of the Convention, should be remeasured. The new characteristics should be determined and applied without delay.

  Article 12 Inspection

  • A.12-1 A copy of the tonnage calculations may be provided together with the International Tonnage Certificate (1969) to the ship's master. Although not a requirement, nothing in the Convention would prevent Administrations from providing these calculations to ships flying their flag.


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