Section 55 of the Principal Act is amended as follows:(a) by omitting subsections (1) , (2) and (3) and substituting the following subsections:(1) An involuntary patient may only be given treatment ( urgent circumstances treatment ) without informed consent or Tribunal authorisation if an approved medical practitioner authorises the treatment as being urgently needed in respect of the patient.(2) An approved medical practitioner may only authorise urgent circumstances treatment in respect of a patient if the approved medical practitioner is satisfied, as a result of an assessment of the patient, that (a) the treatment is necessary for (i) the patient's health or safety; or(ii) the safety of other persons; and(b) waiting for the treatment to be authorised by the Tribunal (or by a member thereof on an interim basis) would compromise (i) the outcomes of the treatment, as specified in section 6(1), for the patient; or(ii) the effectiveness of the treatment, for the patient, in meeting the outcomes of treatment as specified in section 6(1).(b) by omitting subsection (7) ;(c) by omitting from subsection (8)(ab) "CCP" and substituting "Chief Psychiatrist" ;(d) by omitting from subsection (8)(ac) "a CCP" and substituting "an" .