4. The Department of Health, Social Services and Public Safety shall continue to be the appropriate authority in respect of—
(a)any notification, before the coming into operation of regulation 3(2)(a), of an incident by an employer under regulation 4(5) of the 2000 Regulations; and
(b)any investigation, proceedings or other matter, including an appeal in relation to such matters, which has not been completed or finally disposed of before the coming into operation of regulation 3(2)(a) and the appointment of and exercise of functions by inspectors in relation to such matters.