Introduction This interim document presents hurricane-driven metocean conditions (wind@ wave@ current and surge) for use with and reference by other API standards. These conditions are intended to replace the conditions documented in Sections 2.3.4.c and 17.6.2.a of API RP 2A-WSD@ 21st Edition and Appendix C.4 of ISO 19901-1. The metocean conditions documented herein are for guidance and will not generally provide as accurate a result as a dedicated site-specific study. Performance of a site-specific metocean study is the preferred way of ensuring that regional variations in storm climate and local topographic and bathymetric effects are properly accounted for@ and that sufficient data is available to properly identify the phasing between wind@ wave@ current and surge. When performing response-based analyses@ a site-specific study must be performed to develop the necessary time histories of metocean parameters. Site-specific studies should be performed within the guidelines included in this document.