18. Section 37 of the Principal Act is amended—
(a) by inserting in paragraph (2) (b) “subject to subsection (10),” before “the name”;
(b) by inserting in subsection (3) “(other than apprentices)” after “employees”;
(c) by adding at the end of paragraph (4) (b) “with which that employee is registered”;
(d) by omitting subsection (6) and substituting the following subsection:
“(6) If an employer fails to pay the prescribed amount in relation to a period—
(a) within the period specified in subsection (1); or
(b) within any further period allowed by the Registrar;
there is payable to the Board by the employer, in addition to the prescribed amount—
(c) interest on the unpaid amount at the rate of 2.5% of that amount; or
(d) $50;
for each month or part of a month during which the amount remains unpaid, whichever is the greater.”; and
(e) by adding at the end the following subsection:
“(10) In paragraph (2) (b)—
‘employee' does not include a person who, during the period to which the notice relates—
(a) was not a registered employee; and
(b) performed building and construction work for less than 5 consecutive days.”.