In - Service Inspection of Mooring Hardware for Floating Structures Provides guidelines for inspecting mooring components of mobile offshore drilling units (MODUs) and permanent floating installations. This edition includes: • inspection guidelines for steel permanent moorings on permanent floating installations are added; • inspection guidelines for fiber ropes used for permanent and MODU moorings are included; • special guidance for MODU mooring inspection in the areas of tropical cyclone is provided. Although this recommended practice was developed for the primary moorings of MODUs and permanent fl oating installations, some of the guidelines may be applicab le to moorings of othe r floating vessels such as pipe - laying barges and construction vessels. Also some of the guidelines may be applicable to secondary or em ergency moorings such as mooring for jack - up units, shuttle tanker mooring, and dynamic positioning (DP) vessel harbor mooring. The applicability of th is document to other floating vessels and moorings is left to the di scretion of the user