Multilateral technology has become a catalyst for deepwater development. This challenging environment requires functionality and junction integrity. For an injection web in the Voador held, offshore Brazil, a Technology Advancement of Multilaterals (TAML) Level 5 multilateral completion was constructed from a semisubmersible rig to achieve the junction isolation required for this application. The full-length paper details the operator＇s deepwater development philosophy, reservoir considerations, design, operational procedures, and overall-cost information related to the completion. A TAML Level 5 multilateral completion was installed successfully from a semisubmersible rig by adding long-stroke bumper subassemblies to the milling and completion operations.