(1) This regulation sets out the procedure for an inquiry.(2) The regulator must give a written notice to the person referred to in subregulation (3) (a) informing the person of the reasons for the inquiry; and(b) advising the person that the person may, by a specified date (being not less than 28 days after the notice is given), make a submission to the regulator in relation to the inquiry.(3) Notice under subregulation (2) must be given (a) for an inquiry about a facility in relation to which a notification has been given under regulation 536 or 537 , to the contact person identified in the notification; and(b) in any other case, to the operator of the facility.(4) The regulator must (a) if the recipient of the notice has made a submission in relation to the inquiry, consider that submission; and(b) consult with interested persons including (i) health and safety representatives at the facility; and(ii) the emergency service organisations that have responsibility for the area in which the facility is located; and(iii) any government department or agency with a regulatory role in relation to major hazard facilities; and(c) decide whether or not to make a determination under regulation 541 or 542 ; and(d) if it decides to make a determination under regulation 541 or 542 , decide whether or not to make a determination in relation to the operator under regulation 543 .