ShipRight procedures are a comprehensive system of procedures aimed at ensuring high standards of safety, quality and reliability at the design stage and during construction. These procedures also extend, via Linked Supporting Services, to ensure that these standards are met through the operational lifetime of the ship.

Structural Design Assessment (SDA) procedures

These procedures are mandatory, in addition to plan approval requirements, for new LNG and LPG carriers, new container ships and passenger ships depending on size and configuration, and other new ships where the ship type, size and structural arrangement demand. This includes new oil tanker and bulk carrier configurations over 190 metres in length for which the Common Structural Rules are not applicable. In this procedure, the adequacy of primary hull structural members is assessed by comparing applied stress levels and buckling capabilities with permissible values. The structural assessment is carried out using a three dimensional finite element model of a representative length of the ship's hull. This is supplemented by more detailed finite element models where considered necessary to investigate areas of localised higher stress. 

ShipRight procedures Date
Structural Design Assessment Overview May, 2004
Structural Design Assessment Overview Changes Incorporated May, 2004
Global Design Loads of Container Ships and Other Ships Prone to Whipping and Springing January, 2024
Primary Hull and Cargo Tank Structure of Liquefied Gas Carriers Fitted with Type B Independent Tanks Primarily Constructed of Plane Surfaces July, 2020
Primary Hull and Cargo Tank Structure of Type A Tank Liquefied Gas Carriers Decenber, 2023
Primary Hull and Cargo Tank Supporting Structure of Type C Liquefied Gas Carriers January, 2024
Primary Structure of Bulk Carriers December, 2022
Primary Structure of Container Ships July, 2024
Primary Structure of Naval Ships under Category NS2 June, 2021
Primary Structure of Passenger Ships August, 2019
Primary Structure of Ro-Ro Ships September, 2021
Primary Structure of Tankers Changes incorporated in May, 2004
Primary Structure of Tankers May, 2004
Primary Structure of Type B Spherical Tank LNG Ships  Changes incorporated in May, 2004
Primary Structure of Type B Spherical Tank LNG Ships May, 2004
Procedure for Type A Tank Liquefied Gas Carriers, Notice 1 May, 2019
Procedure for Type A Tank Liquefied Gas Carriers, Notice 2 May, 2019
Procedure for Primary Structure of Ore Carriers July, 2019
Procedure for Membrane Tank LNG Ships March, 2025
Notice 1 to SDA Procedure for Membrane Tank LNG Ships August, 2021
Sloshing Loads and Scantling Assessment  Changes incorporated in May 2004
Sloshing Loads and Scantling Assessment May, 2004
Assessment of Primary Structure of Mono-Hull Yachts July, 2024
ShipRight SDA Procedure for General Cargo Ships with A Long Hold February, 2023