Accumulated Campaign Service Medal

The Accumulated Campaign Service Medal, instituted January 1994, is for "long service on campaign" and recognizes repeat operational service. Originally it recognized 1080 days of cumulative campaign service. After 1 July 2011, the service requirement was reduced to 720 days.

Description
The obverse carries the Jubilee head effigy of Elizabeth II and her titles. On the reverse has a spray of oak and laurel branches with the words "FOR ACCUMULATED CAMPAIGN SERVICE". The Ribbon is that of the GSM 1962 with an added central gold stripe. The second version uses the same medal, but with a ribbon with two central gold stripes. Both Medals are solid silver 995/1000, but only the original ACSM was hallmarked on the rim of the medal next to the neck of the suspension bar.

Bars
A silver coloured laurel leaf bar is awarded for each additional 1080 days Operational Service, or 720 days under the 2011 requirements.

Original critera
It was originally granted to those holders of the General Service Medal (1962) who have completed an accumulated operational service of thirty-six months since 14 August 1969. Part-time members of the Royal Irish Regiment need only complete 1,000 days. Its purpose was to reward those who had done multiple tours of duty in Northern Ireland but who would have only the GSM 1962 medal with the Northern Ireland clasp, to show for all their service.

After January 2008
The Queen approved an amendment to the qualifying criteria for the Accumulated Campaign Service Medal (ACSM) for members of the Armed Forces, MoD Civil Servants, and Contractors on Deployed Operations (CONDO) that came into force on 1 July 2011. To be awarded the ACSM 11, an individual must hold a qualifying operational medal as listed in Para 4 of DIN985_2011-08, other specifically designated multi-national campaign medals and have completed more than 24 months (720 days) campaign service. Bars are to be awarded for each additional period of 720 days of approved operational service. A month is defined as 30 days and part-months may be accumulated.