This document specifies principles for the structural integrity management (SIM) of offshore structures 
subjected to known or foreseeable types of actions.
This document specifies requirements and provides recommendations applicable to the following types 
of fixed steel offshore structures for the petroleum and natural gas industries:
— caissons, free-standing and braced;
— jackets;
— monotowers;
— towers.
This document is applicable to topsides, including but not limited to the main decks, deck legs, topsides 
modules, crane pedestals, helideck, drilling derrick, skid beams, flare booms, exhaust towers, radio 
tower, conductor support frames, and lifeboat davits. In addition, it is applicable to compliant bottom 
founded structures, steel gravity structures, jack-ups, other bottom founded structures and other 
structures related to offshore structures (e.g. underwater oil storage tanks, bridges and connecting 
structures), to the extent to which its requirements are relevant.
This document contains requirements for planning and engineering of the following tasks:
a) integrity management data requirements;
b) in-service inspection and integrity management of both new and existing structures;
c) assessment of existing structures;
d) evaluation of structures for reuse at different locations;
e) evaluation of structures for their future removal.st edition 2019-07 Petroleum and natural gas industries？—？Specific？requirements？ for offshore structures — Part 9: Structural integrity management Industries du pétrole et du gaz naturel — Exigences spécifiques relatives aux structures en mer — Partie 9: Gestion de l'intégrité structurelle Reference number ISO 19901-9:2019(E) ？ ISO 2019 ISO 19901-9:2019(E) COPYRIGHT PROTECTED DOCUMENT ？