The J-Bellis subsea field is located in GC 157 in approximately 2,614ft of water and is tied back to the Enven operated Brutus TLP in GC 158. The subsea system is comprised of three (3) subsea wells that hookup to a PLEM via jumpers, single insulated and buried flowline as well as a single production umbilical. First production was achieved in 2005 and is still operating today. In the original design, three (3) 1” ID carbon steel lines were included within the production umbilical with the intent to supply subsea gas lift via a ten (10) ½” tube gas lift steel flying lead that interfaced to a gas lift MQC plate on one subsea tree. In 2004, when the system was permitted for approval, the platform verification program nor today’s subsea gas lift requirements existed. Therefore, commissioning a pre-designed & existing subsea gas lift system that meets today’s regulatory criteria required a unique approach. Topside modifications were required and eventually subsea as well following the initial commissioning activities that uncovered unknown integrity anomalies with the gas lift tubes within the umbilical. This presentation will cover the challenges encountered during the design, regulatory and commissioning phases of the project and how LLOG managed these challenges to commence gas lift service in the J-Bellis field.