The Type III twenty cent piece was put into circulation in 1999 (although a silver-proof was issued in 1998) and continues to be regularly issued today. It features the new Ian Rank-Broadly portrait of HM Queen Elizabeth II on the obverse with the same Stuart Devlin platypus design on the reverse. Devlin's initials (SD) can be found within a wave to the left of the platypus' foot and Rank-Broadly's initials (IRB) are located below the the obverse portrait.
A number of additional striketypes were issued along side the standard business, specimen, and proof strike. From 2001 the Royal Australian Mint intermittently issued gold proof strikes, and from 2003 the mint issued silver proof strikes. In addition, from 2002 to 2009 the mint issued wedding coin sets containing deep mirror specimen strike that were replaced by proof strikes in 2010.