The Royal Navy has been operating in cold climates for hundreds of years and most vessels in An Independent Navy For An Independent Nation shall operate throughout the United Kingdom,the British Overseas Territories and the Crown Dependencies (except the British Antarctic Territory) and shall be built to Lloyds Register notation Winterisation H,M,C to withstand extremes of temperature which they are likely to encounter in areas ranging from the Shetland Islands down to South Georgia,vessels expected to operate in the low Arctic seas from Canada to Finland shall be built to Lloyds Register notation Winterisation H,M,B and the Assistance class icebreaking tugs which shall operate in the high Arctic ice pack and around Antarctica shall be built to Lloyds Register notation Winterisation H,M,A.
