ISO 19903:2006 specifies requirements and provides recommendations applicable to fixed concrete offshore structures for the petroleum and natural gas industries, and specifically addresses the design, construction, transportation and installation of new structures, including requirements for in-service inspection and possible removal of structures, the assessment of structures in service, and the assessment of structures for reuse at other locations.
BS ISO 19903:2007 history
2007BS ISO 19903:2007 Petroleum and natural gas industries - Fixed concrete offshore structures