The main purpose of these Guidance Notes is to describe criteria for design@ material@ testing@ manufacturing@ installation and subsequent survey of fiber ropes to be used as mooring components in offshore mooring systems. The secondary purpose of these Guidance Notes is to highlight differences between fiber rope mooring systems and typical steel mooring systems@ and to provide guidance on how to handle these differences during system design and installation. In view of the influence of rope properties on mooring system performance@ these Guidance Notes include details of how rope testing@ mooring analysis and installation can be integrated to provide a consistent mooring system design methodology. In this matter@ these Guidance Notes cover the following aspects: ? Design and Analysis Considerations of Mooring System ? Design Criteria for Mooring Components ? Design of Fiber Rope ? Testing and Production of Yarn and Rope ? Inspection and Certification during and after Rope Production ? Survey and Witness by ABS Surveyor Where the mooring design@ construction and installation details are similar or equivalent to steel wire/chain mooring systems@ no further guidance is included in these Guidance Notes. These Guidance Notes are not intended to provide a comprehensive manual on all aspects of mooring design@ construction and installation since these details are adequately covered by other recognized standards@ such as API RP 2SK. The publication of these Guidance Notes reflects the growth in offshore mooring applications for fiber ropes and the need for a consolidated written guidance. These Guidance Notes summarize industry experience and common practices in application of fiber ropes for offshore mooring and provides a general guidance to check the integrity of fiber ropes application. These Guidance Notes applies to fiber ropes used in the mooring system of both permanent and temporary offshore installations such as: ? Monohull Based FPSOs ? Semi-Submersible Based FPUs ? Mobile Offshore Drilling Units (MODUs) ? Drill-Ships ? Spar Platforms ? CALM Buoys Therefore@ these Guidance Notes should be used in conjunction with the latest ABS publications as follows: i) ABS Rules for Building and Classing Mobile Offshore Drilling Units (MODU Rules) ii) ABS Rules for Building and Classing Single Point Moorings (SPM Rules) iii) ABS Guide for Building and Classing Floating Production Installations (FPI Guide) iv) ABS Guide for Certification of Offshore Mooring Chain (Chain Guide) These Guidance Notes are not intended to cover general marine applications of fiber ropes@ such as berthing and mooring lines at piers and harbors@ towing hawsers on tugs@ mooring hawsers on Single Point Moorings (SPMs) and Tension Leg Platform (TLP) tendons.