In addition to Part   4 - 6A, there are 4 other kinds of exemptions from the prohibitions in Division   3 of Part   4 - 11 on dealing in medical devices that are not included in the Register:

  (a)   medical devices exempted under the regulations;

  (b)   approval for medical devices to be used for special treatment of individuals or for experimental purposes;

  (c)   authorisation of health practitioners to supply specified medical devices;

  (d)   medical devices exempted if substitutes are unavailable or in short supply.