They must have crews and aircraft in place surely. How else can they sign a contract to provide SAR cover worthy of the name on 20th December with the intention of starting on 1st January? They must already have fully-trained crews, experienced in day and night time SAR in all weathers and all environments. Plus they must already have an aircraft capable of letting down safely at night overwater. It must all be in place already.
Can you tell that it's the season of goodwill?