Det Norske Veritas (DNV), formerly DNV GL, is an international accredited registrar and classification society headquartered in Høvik, Norway. DNV provides services for several industries, including maritime, oil and gas, renewable energy, electrification, and healthcare.
DNV reverses opposition to nuclear power in shipping
https://www.seatrade-maritime.com/alternative-fuels/dnv-reverses-opposition-to-nuclear-power-in-shipping