Section 21 of the Principal Act is amended as follows:

(a) by omitting "work" and substituting "work, other than building services work," ;

(b) by omitting the penalty and substituting the following penalty:

Penalty:  In the case of –

(a) a body corporate, a fine not exceeding 400 penalty units; or

(b) an individual, a fine not exceeding 200 penalty units.