Section 1 General

1.1.1 The requirements of Pt 15, Ch 2, 1 General to Pt 15, Ch 2, 12 Additional requirements relating to fixed pressure water spray fire-extinguishing systemsof this Chapter apply to all craft which are required to satisfy the relevant design and construction regulations of the HSC Code.

1.1.2 Additional requirements for Passenger (B) Craft are given in Pt 15, Ch 2, 13 Additional requirements for Passenger (B) Craft.

1.1.3 Requirements for craft of less than 24 m not required to comply with the HSC Code are given in Pt 15, Ch 2, 14 Requirements for small craft which are not required to comply with the HSC Code.

1.1.4 Requirements for yachts and service craft of 24 m or more not required to comply with the HSC Code are given in Pt 15, Ch 2, 15 Requirements for yachts and service craft of 24 m or greater in length, which are not required to comply with the HSC Code. The requirements for yachts satisfy the relevant requirements of the UK MCA LY3 Code.

1.1.5 The requirements for air cushion vehicles are given in Pt 15, Ch 2, 16 Requirements for Air Cushion Vehicles.

1.1.6 Special consideration shall be given to passenger craft not required to comply with the HSC Code.

1.1.7 In addition to the requirements of this Chapter, attention should be given to any relevant statutory requirements of the National Authority of the country in which the craft is to be registered.

1.1.8 Consideration will be given to special cases or to arrangements which are equivalent to those required by these Rules.

1.2.1 The plans and information detailed in Pt 15, Ch 1 Piping Design Requirements are to be submitted before commencement of work.

1.3.1 For the purpose of this Section, a non-watertight deck covered by a weathertight structure may be taken as equivalent to a watertight deck. For definitions of the terms watertight and weathertight, see Pt 3, Ch 1 General Regulations.

1.4.1 For craft to which subdivision and damage stability requirements apply, precautions are to be taken to prevent progressive flooding between compartments resulting from damage to piping systems. For this purpose, piping systems are to be located inboard of the assumed extent of damage applicable to the craft type.

1.4.2 Where it is not practicable to locate piping systems as required by Pt 15, Ch 2, 1.4 Prevention of progressive flooding in damage condition 1.4.1, the following precautions are to be taken:

1. Bilge suction pipes are to be provided with non-return valves of approved type.

2. Other piping systems are to be provided with shut-off valves capable of being operated from positions accessible in the damage condition, or from above the bulkhead deck where required by the Rules.

These valves are to be located in the compartment containing the open end or in a suitable position such that the compartment may be isolated in the event of damage to the piping system.

1.4.3 Where subdivision and damage stability requirements apply and where penetration of watertight divisions by pipes, ducts, trunks or other penetrations is necessary, arrangements are to be made to maintain the watertight integrity.