Section 1 Scope
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Offshore Units, July 2022 - Part 3 Functional Unit Types and Special Features - Chapter 6 Units for Transit and Operation in Ice - Section 1 Scope

Section 1 Scope

Parent topic: Chapter 6 Units for Transit and Operation in Ice

1.1 General

1.1.1 The following requirements are for units intended for operations in ice and cold conditions.

1.1.2 Guidance on the appropriate requirements and notations is provided in Table 6.1.1 Ice and cold operations.

Table 6.1.1 Ice and cold operations

Reference Conditions Description Notation
Ice Operations
  Section 1   Application    
  Section 2 Hull General requirements Applicable to all ice classes  
  Section 3 Machinery
  Section 4 Hull Light and very light ice conditions For ships with length less than 150 m Ice Class 1E
  Section 5 Machinery Hull strengthening in forward region only Ice Class 1D
  Section 6 Hull First-year ice conditions Finnish-Swedish Ice Class Rules Ice Class 1C FS
  Ice Class 1B FS
  Section 7 Machinery Ice Class 1A FS
  Ice Class 1AS FS

Rules for Ships,

Pt 8, Ch 2 Ice Operations - Ice Class

 Section 8 Hull Finnish-Swedish Ice Class Rules with enhanced engine power for icebreaking capability Ice Class 1C FS(+)
Ice Class 1B FS(+)
  Section 9 Machinery Ice Class 1A FS(+)
Ice Class 1AS FS(+)
  Section 10 Hull Multi-year ice conditions IACS Polar Ship Rules Ice Class PC7
  Ice Class PC6
  Ice Class PC5
  Section 11 Machinery Ice Class PC4
  Ice Class PC3
  Ice Class PC2
  Ice Class PC1
Cold Operations
Rules for the Winterisation of Ships, July 2022 Section 1   Application    
Section 2 Hull materials Low temperature operations Hull construction materials Winterisation H(t)
Section 3 Equipment and systems Low temperature operations Short duration Winterisation C(t)
Seasonal duration Winterisation B(t)
Prolonged duration Winterisation A(t)
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