Section 69 of the Principal Act is amended as follows:(a) by omitting from subsection (2) "be accompanied by a copy of the relevant application and is to" ;(b) by omitting subsection (3) and substituting the following subsection:(3) The Board is not obliged to give notice of a hearing (a) to a person whose whereabouts cannot after reasonable inquiries be ascertained; or(b) if the matter relates to the provision of medical or dental treatment and the Board considers it proper to dispense with notice of the hearing by reason of urgency.