Specification for Subsea Umbilicals (includes Addendum 1 dated December 2017) Specifies requirements and gives reco mmendations for the design, material selection, manufacture, design veri fication, testing, installation, and operation of subsea control systems, ch emical injection, gas lift, utility and service umbilicals, and as sociated ancillary equipment for the petroleum and natural gas industries. This also applies to umbi licals containing electrical conductors, optica l fibers, thermoplastic hos es, and metallic tubes, either alone or in combination, and applies to umbi licals that are for static or dynamic service, and with routings of surface - surface, surface - subsea, and subsea - subsea