(a) by omitting “Schedule” and substituting “Schedule 1”; and
(b) by inserting—
(i) after the heading—
“Metal Fitting and machining trades”
the following item:
“1A. Engineering tradesperson—mechanical”;
(ii) after item 4 the following item:
“4A. Engineering tradesperson—fabrication”; and
(iii) after item 12 the following item:
“12A. Engineering tradesperson—electrical/electronic”.