8. Section 120(1) of the 1968 Act shall be treated (if, apart from the provision made by this paragraph, it would not have been treated) as if–
(a)as regards the opinion of the harbourmaster there mentioned, the reference were only to a vessel sunk, stranded or abandoned in the Thames which is, or is likely to become, an obstruction, impediment or danger to the safe and convenient navigation or use of the Thames; and
(b)as regards the opinion of the dockmaster so mentioned, the reference were only to a vessel sunk, stranded or abandoned in the docks which is, or is likely to become, an obstruction, impediment or danger to the safe and convenient navigation or use of the docks.