Wearing of Uniform by Retired Officers

All regular officers who have retired from service (including Regular Reserve of officers permitted to retain or granted higher rank on retirement from Regular Reserve of Officers) may wear uniform with badges of appropriate rank on special occasions, such as ceremonial parades, entertainment of military nature and other occasions when wearing of uniform would appear appropriate.
Officers will normally wear the Service Dress of the Regiment/Corps to which they belonged before retirement. Mess Dress may also be worn on appropriate occasion. Wearing of Badges of Rank. Badges of rank, to be worn by those entitled to use military ranks, will be those of the last substantive rank, except where the higher acting rank has been held for a minimum period of 2 years at the time of retirement or where the use of the honorary/military rank is specifically authorised.