The National Medal was established on 14 February 1975 as one of the original elements of the distinctive Australian system of honours and awards. The Medal recognises long and diligent service in organisations that protect life and property at some risk to their members. Many, but not all, eligible groups are uniformed. The Medal is awarded to persons for long service in eligible organisations who fulfil the „primary function‟ (see 3.1.1, below) and meet other criteria. Fifteen years eligible service is necessary to qualify for the Medal. Clasps are available for each additional 10-year period.
The National Medal was established on 14 February 1975 as one of the original elements of the distinctive Australian system of honours and awards.