Chemical Corps affiliation with the corps. The Chemical Corps branch insignia consists of a cobalt blue, enamel benzene ring superimposed over two crossed gold retorts. The branch insignia, which was adopted in 1918 by the fledgling Chemical Service, measures .5 inches in height by 1.81 inches in width. Crossed shells with a dragon head was also commonly used in France for the Chemical service. The Chemical Warfare Service approved the insignia in 1921 and in 1924 the ring adopted the cobalt blue enamel. When the Chemical Warfare Service changed designations to the Chemical Corps in 1946 the symbol was retained. The regimental
.au domain registration on 1 July 2002. Since this new regime, any registration has to be ordered via a registrar. Oversight of ".au" is by .au Domain Administration (auDA). It is a not-for-profit organisation whose membership is derived from Internet organisations, industry members and interested individuals. The organisation operates with the endorsement of the Australian Government and with the delegated authority of ICANN. Policy for .au is devised by "policy development panels". These panels are convened by auDA and combine public input with industry representation to derive policy. The day-to-day operation of the .au registry technical facility is tendered out by