Exposure Level

Classification system used to define the requirements for a structure based on consideration of life-safety and of environmental and economic consequences of failure. NOTE 1 An exposure level 1 (L1) jack-up is the most critical and exposure level 3 (L3) the least (see 5.5). NOTE 2 Adapted from ISO 19902:2007, definition 3.18.

Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards

Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards

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