(1) Subject to this section, a person who has made a nomination may revoke it at any time.
(2) A revocation must—
(a) be in writing and state that the nomination is revoked; and
(b) be signed and dated by the person who made the revocation; and
(c) be witnessed by an authorised witness; and
(d) include a statement signed by the authorised witness stating that—
(i) in the opinion of the witness, the person making the revocation understands what a revocation is and the consequences of making a revocation; and
(ii) the witness observed the person sign the revocation; and
(iii) the witness is an authorised witness.
(3) A person who revokes a nomination must—
(a) take reasonable steps to inform the nominated person of the revocation; and
(b) if the person is a patient, inform the authorised psychiatrist.