Uptime gangways will always be built after newest updated standard:
Most gangways are DnVGL St-358 approved, 2017 version available here.
The gangways can be approved after NORSOK and other HSEQ scemes.
The Uptime helideck is HCA approved and is based on the Marine Aluminium helideck with its UK CAA: CAP 437, Norwegian CAA: BSL D5-1 SOLAS approvals.
The roll compensation model will make it possible to have the helideck upgraded at least one class on the same vessel.