9feeba01__RSPCA_Australia_knowledgebase__Relevant_Provision
[State] Australian Capital Territory [Legal? (Yes/No)] No [Relevant Provision] 
Section 19A of the Animal Welfare Act 1992 (ACT) provides that a veterinary surgeon must not carry out a medical or surgical procedure on an animal solely for cosmetic purposes. Furthermore, it specifically provides that a veterinary surgeon must not dock a dog’s tail for a purpose other than for a therapeutic purpose.
Is the tail docking of dogs legal? - RSPCA Australia knowledgebase
Relevant Provision