8Any reference to a lieutenant of a county or Greater London—
(a)in any enactment passed before the end of the session in which the [1972 c. 70.] Local Government Act 1972 was passed, or
(b)in any instrument made before 26th October 1972 (the date of the passing of that Act),
shall continue to be construed as a reference to the lord-lieutenant of a county or of Greater London (as the case may be).