If a delegation was
made under section 5A or 5B of the Public Works Act 1902 and is in force
immediately before the appointed day, then, insofar as it delegates powers or
duties which are essentially the same as powers or duties which —
(a)
could be exercised or performed under this Part or Part 10; and
(b)
could be delegated to those persons under section 159 or 160,
a delegation of those
powers or duties is deemed to have been duly made under this Part to those
delegates.