General (1 July 2010) For a vessel intended for service in domestic waters@ ABS will consider the Flag Administration's Ships Safety Regulations as an alternative in satisfying specific areas of the Rules. Where approved by the Committee for a particular service@ the vessel will be classed and distinguished in the Record by the symbols ? A1 followed by class notation@ (Operational Area) Domestic Service@ (e.g.@ ? A1 U.S. Domestic Service@ etc.).