Section 13D of the Principal Act is repealed and the following section substituted:
“13D. Disallowable instruments
An instrument referred to in section 4, subsection 5 (2), 6 (2), 8 (6), 10 (2), 11 (2) or 13 (5), section 13CA or subsection 13CB (3), 13CC (7), 13CE (3) or 13CF (6) is a disallowable instrument for the purposes of section 10 of the Subordinate Laws Act 1989 .”.