DNV DNV-OS-E401 [ Revised ]

Objectives and Scope

The objectives of this standard are to:

— provide an internationally acceptable standard of safety for helicopter decks by defining minimum requirements for the design, materials, construction, arrangement for safe helicopter operations and commissioning

— serve as a contractual reference document

— serve as a guideline for designers, suppliers, purchasers, contractors and regulators

— specify procedures and requirements for helicopter decks subject to DNV certification and classification.

The scope of this standard covers requirements for the helicopter deck structure, vessel safety, helicopter and refuelling and hangar facilities.

The scope excludes the NMD Helicopter deck regulations as applicable on Norwegian shelf. These are provided in DNV-OSS-201.