In section 74(6) of the principal Act (discharge of power to make exemption orders in City of London and metropolitan police district)—
(a)after the word “district”, in the first place where it occurs, there shall be inserted the words “ subsection (4) of ”; and
(b)for the word “references”, there shall be substituted, in the first place where it occurs, the words “ the reference ” and in the second and third places where it occurs, the words “ a reference ”.