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APSR (Fracture repairs for Ship Structures) Rules, 2014

Over the past several decades, the industry has made significant advances in ship construction and repair in the areas of marine ship design, construction, personnel training, materials and equipment. These advances have not only improved the cost and time effectiveness of vessel construction and repair but, more importantly, helped ensure the safety of ships, people and the environment.

Marine ship design has improved over the years to make ship construction and repairs more cost-effective, and more reliable. For example, MARPOL 73/78 as amended required oil carriers to be fitted with double hulls or an alternative design to protect the environment when the outer hull is damaged. Similarly, high tensile steels are used in designs allowing for reductions in plate thickness. Use of aluminum alloy superstructures can provide increased passenger accommodation on the same draft or be used to lower the center of gravity and improve stability.

In addition to ship design, training for personnel involved in the construction process is imperative to ensure quality control. In most cases, both Flag Administrations and Classification Societies now have stricter process inspection and testing requirements.

Technology in ship design has also been developing at a fast pace. New computer applications allow ship designers and approvers to significantly improve analyses of vessel designs by incorporating dynamic-based criteria for the scantlings, structural arrangements and details of ship structures.

APSR (Fracture repairs for Ship Structures) Rules, 2014