Section 1 General
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Inland Waterways Ships, July 2022 - Part 3 Ship Structures (General) - Chapter 8 Superstructures, Deck-houses and Bulwarks - Section 1 General

Section 1 General

1.1 Application

1.1.1 This Chapter applies to all types of ships.

1.1.2 The scantlings of superstructures, deck-houses and exposed machinery casings are generally to comply with the following requirements, but increased scantlings may be required where the structure is subjected to loading in excess of Rule limits, see Pt 3, Ch 3 Structural Design.

1.1.3 The term ‘erection’ is used in this Section to include superstructures, deck-houses and machinery casings, superstructures being erections extending to the ship’s sides.

1.1.4 For scantlings of protected machinery casings, see Pt 3, Ch 6, 6 Machinery casings and fuel oil tanks.

1.1.5 For requirements relating to companionways, doors, accesses and skylights, see Pt 3, Ch 11 Closing Arrangements to Openings in Shell and Deck, Ventilators, Air Pipes, Sounding Pipes and Discharges.

1.2 Definition of tiers

1.2.1 The lowest, or first tier, is that which is directly situated on the deck to which the depth, D, is measured or on a superstructure of less than 1,80 m in height. The second tier is the next tier above the lowest tier and so on.


Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.