Section 1 General
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Ships for Service on the Great Lakes and River St. Lawrence, July 2022 - Chapter 3 Periodical Survey Regulations - Section 1 General

Section 1 General

Parent topic: Chapter 3 Periodical Survey Regulations

1.1 Frequency of surveys

1.1.1 The requirements of this Chapter are applicable to the Periodical Surveys set out in Ch 2, 2.4 Existing ships - Periodical Surveys. Except as amended at the discretion of the Committee, the periods between such surveys are as follows:

  1. Annual Surveys as required by Ch 2, 2.4 Existing ships - Periodical Surveys 2.4.1.

  2. Intermediate Surveys as required by Ch 2, 2.4 Existing ships - Periodical Surveys 2.4.2.

  3. Docking Surveys as required by Ch 2, 2.4 Existing ships - Periodical Surveys 2.4.3.

  4. Special Surveys (Lakes) at five yearly intervals as required by Ch 2, 2.4 Existing ships - Periodical Surveys 2.4.4.

  5. Complete survey of machinery at five yearly intervals as required by Pt 1, Ch 2, 3.5 Existing ships – Periodical Surveys 3.5.18 of the Rules for Ships.

1.1.2 For the frequency of surveys of boilers, steam pipes, screwshafts, tube shafts, propellers and inert gas systems, see Pt 1, Ch 3, 15 Boilers of the Rules for Ships.

1.2 Surveys for damage or alterations

1.2.1 At any time when a ship is undergoing alterations, or damage repairs, any exposed parts of the structure normally difficult to access are to be specially examined, e.g. if any part of the main or auxiliary machinery, including boilers, insulation or fittings, is removed for any reason, the steel structure in way is to be carefully examined by the Surveyor, or when cement in the bottom or covering on decks is removed the plating in way is to be examined before the covering is relaid.

1.3 Unscheduled surveys

1.3.1 In the event that LR has cause to believe that its Regulations are not being complied with, LR reserves the right to perform unscheduled surveys of the hull or machinery.

1.4 Definitions

1.4.1 As prescribed in Pt 1, Ch 3, 1.5 Definitions of the Rules for Ships and as noted below.

1.4.2 A Great Lakes Bulk Carrier is a ship which is constructed generally with a single deck, side tanks and double bottom tanks in way of the cargo holds, and is intended to carry dry cargo in bulk.

1.4.3 A Ballast Tank is a tank which is used to carry salt and/or fresh water ballast.

1.4.4 A Transverse Section includes all longitudinal members such as plating, longitudinals and girders at the deck, side, bottom, longitudinal bulkhead, tunnel deck and inner bottom.

1.4.5  Laid-Up. A ship may be regarded as laid-up when it is taken out of service for a period of time.

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