Allowing the detonation of 12 UK nuke bombs was out ticket to the UK show. We didn't even need to do it on our own. I don't know who said no. I think the US told the UK to tell us? End of story, no bomb, a non-proliferation treaty and under the nuke umbrella of the US/UK.
https://www.arpansa.gov.au/understan...eapons-testing Nuclear weapons testing occurred from 1952 to 1963 at Maralinga, South Australia; Montebello Islands, Western Australia and Emu Field, South Australia.