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Section 1 Kinds of Surveys
101. Intermediate Survey
Intermediate Surveys are to be carried out with in 3 months before or after the anniversary due date from the completion date of the initial classification survey or of the previous Special Survey.
102. Special Survey.
Special Surveys are to be carried out at a date not exceeding 5 years from the completion date of classification survey or the due date of the previous Special Survey. However, if Special Surveys are carried out at a date which shall be more than 3 months earlier than the due date of Special Survey, the next Special Survey shall be assigned at the date of 5 years after the completion date of the concerned Special Survey.
103. Occasional Survey
All classed submersibles are to be subjected to Occasional Surveys when they fall under either of the following conditions at the periods other than those of Special, Intermediate Survey:
(1) For the surface dependent submersible, when the support ship or station is changed
(2) When main parts of submersibles, or important fittings or equipment which have been surveyed by the Society, have been damaged, or are about to be repaired or altered.
(3) When the all or some parts of machinery is changed or moved.
(4) When propeller shaft drawn out and the survey of the shaft is requested by the Owner.
(5) When safety valves are opened up or when settings of safety valves are altered.
(6) Other cases where surveys are designated or whenever survey is deemed necessary by the Surveyor.
(7) When due date of survey are to be postponed.