A silver-gilt bar with a likeness of the Federation Star at the centre is added to the SG to represent a subsequent act of great heroism or conspicuous gallantry in action in circumstances of great peril.
Recipients of the SG and additional bar/s are entitled to use the postnominals 'S.G. and Bar'
SG bars/clasps can be issued posthumously.
When the ribbon bar is worn, indication of a second award - or bar - is shown by a miniature emblem of the gold-plated Federation Star.