scope:

This publication covers the Society's involvement in Classification of a mobile offshore Unit's operational phase (Fleet in Service) and is applicable for the following structural designs types and services:

- ship-shaped Units

- column-stabilised Units

- cylindrical Units

- self-elevating Units

- tension-leg type

- deep draught type

intended for the following services:

- drilling

- well intervention

- accommodation

- heavy-lifting

- wind turbine installation

- general offshore support

- hydrocarbon production

- hydrocarbon storage and offloading

- hydrocarbon loading

- LNG/LPG production

- LNG/LPG storage and offloading

- LNG/LPG loading.

Guidance note:

Although this publication refers primarily to liquefied natural gas (LNG) and liquefied petroleum gas (LPG), the principles herein may also be used for other offshore gas installations such as those involving primarily compressed natural gas (CNG), and gas to liquid (GTL) products.