The drive to realise new hydrocarbon assets deeper into the Arctic Circle, would require the development of an improved environmentally-centric technology assurance and acceptance criteria. These criteria demand that all installed systems are of high integrity. The high consequence of failure on the Arctic Circle environment demands that all systems are to be installed to safety standards as a minimum, for all aspects of the petroleum infrastructure. Offshore Oil and Gas duty holders will claim, and be required to demonstrate that the 'Environmental Integrity Level' (EIL) has been achieved in order to demonstrate conformance to the stringent Arctic Circle legislation.