In the following provisions, namely—
(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(b) the provisions of any Order in Council modifying the effect of section 52,
“vocational training” includes advanced vocational training and retraining; and any reference to vocational training in those provisions shall be construed as including a reference to vocational guidance.