GL - Noble Denton
Classification Process

Classification Process

Keep it safe

Classification societies like the GL were  founded to develop design, construction and material standards and to oversee the construction of ships – protecting lifes, property and the environment.

In a safe condition

Today, major classification societies undertake a broad range of activities under strict quality standards to ensure the protection of life, property and the environment. The International Maritime Organization (IMO) requires that ships sailing on international routes must be classified by a society. Many countries have recognised certain societies to oversee vessels flying their flag to ensure that IMO regulations and other statutory regulations are complied with.

A ship that is to be classified must first be designed to approved drawings according to a society's rules. The construction is then supervised by class surveyors and built from certified materials and components. Upon satisfactory completion of the construction, a certificate of class for both the hull and machinery is issued. The certificate is valid for five years, during which time annual and intermediate surveys are conducted to ensure that the vessel is maintained in a safe condition.

The GL classification service

To acquire a new certificate of class at the end of those five years, a thorough survey of the hull and machinery has to be performed. The GL classification services for newbuildings includes:

  • Review of all class-relevant design documentation, calculations and drawings
  • Design approval, survey, certification of materials and equipment
  • Supervision of the vessel's construction
  • Witnessing of functional tests, including dock and sea trials
  • Issuance of statutory certificates, certificates of compliance and initial surveys on behalf of flag states

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