Instituted on 25th March 1916 for rewarding acts of bravery not sufficient to merit the award of the DCM

Instituted in 1901

Instituted on 14th October 1914 for award to Petty Officers and ratings of the Royal Navy

Awarded for service between 17 November 1986 and 31 October 1988

between 7th February

EFFICIENCY DECORATION Post 1982 Miniature WITH HAC RIBBON Campaign_Afghanistan Instituted on 25th March 1916Territorial Decoration awarded with the green ribbon with central yellow stripe until 1982 when it was combined into a single Decoration emcompassing the AER and T&AVR, the ribbon was then standardised to half blue half green with a central yellow stripe. This is the version awarded with the HAC ribbon to members of the HAC who qualify for the award.