139Regulator must permit WHS entry permit-holder to show

139 Regulator must permit WHS entry permit-holder to show cause (1) If, on an application under section 138, the regulator is satisfied that a ground may exist for the revocation of the WHS entry permit under section 138 (2) (a), the regulator must— (a) give the WHS entry permit-holder written notice (a show cause notice); and (b) if the regulator considers it appropriate—suspend the operation of the WHS entry permit until the regulator decides the application for revocation. (2) The show cause notice must— (a) contain a statement to the effect that the WHS entry permit-holder may, not later than 21 days after the day the WHS entry permit-holder is given the notice, give the regulator written reasons explaining why the WHS entry permit should not be revoked; and (b) be accompanied by a summary of the reasons for the application; and (c) if applicable, be accompanied by a notice of suspension of the