583. Notwithstanding paragraph 3 of section 521 and section 544, a regional chief inspector appointed under section 177 of the Act respecting occupational health and safety (chapter S-2.1) retains his authority to examine, hear and decide any application to review an order or decision rendered by an inspector, before 19 August 1985, under section 19, Chapter X or Division V of Chapter XI of the said Act. The Commission may appoint a new regional chief inspector, if required, to exercise the authority provided in the first paragraph.