2.2 General Approval - Certificate of Approval of the Calculation Program
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.836 – Recommendation on Loading Instruments – (Adopted on 6 February 1998) - Annex 2 - No.48 (1997) - Recommendation on Loading Instruments - 2. Approval Process - 2.2 General Approval - Certificate of Approval of the Calculation Program

2.2 General Approval - Certificate of Approval of the Calculation Program

  2.2.1 The loading instrument's calculation program may be generally approved in accordance with the Recommendations of this section. Upon satisfactory completion, the calculation program may be issued with a Certificate of Approval.

  2.2.2 A Certificate of Approval is only valid for the identified, specified version of the calculation program.

  2.2.3 Upon application to the Society for general approval of the calculation program, the Society should provide the applicant with test data from at least two different ship types. For calculation programs based on the input of hull form data, test data should be provided for three different ship types. This data should be used by the applicant to run the calculation program for the test ships. The results obtained (together with the hydrostatic data and cross-curve data developed by the program, if appropriate) should be submitted to the Society for the assessment of the program's computational accuracy. The Society should perform parallel calculations using the same input data and a comparison of these results will be made against the submitted program's results.

  2.2.4 A Certificate of Approval may be issued if:

  • 1. The loading program's system specification is found to be satisfactory. See section 3.1.

  • 2. The functionality of the loading program has been clearly described and the calculation methods and principles are to the satisfaction of the Society.

  • 3. The loading program's functional specification is found to be satisfactory. See section 4.

  • 4. The computational accuracy of the loading program is within acceptable tolerances. See section 2.5.

  • 5. A clear and concise operation manual is submitted for review.

  • 6. Details of the minimum hardware specification have been stated.

  2.2.5 The Certificate of Approval should specify, in detail, what calculation the program is approved for as well as important limitations.

  2.2.6 The Certificate of Approval should remain valid for a period not exceeding five years. The Certificate of Approval would be revalidated upon confirmation from the manufacturers of the calculation program that the calculation algorithms remain unchanged.

  2.2.7 The Certificate of Approval held for any specified calculation program should become invalid if the calculation algorithms have been modified by the manufacturer without the agreement of the issuing Society. In such cases, the revised calculation program should be treated as a new calculation program.


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