The Principal Regulations are amended by substituting the following Article for Article 20:
"20. Interpretation: Part 4
(1) In this Part -
'Companies Acts' means the Companies Act 1963, as amended from time to time, and includes any Act that is required to be read as one with that Act or with any Act amending that Act;
'control' means the relationship between a parent undertaking and a subsidiary, as defined in Article 1 of Council Directive 83/349/EEC, or a similar relationship between any natural or legal person and an undertaking;
'qualifying holding' has the meaning given by Article 9 (4) of these Regulations;
'parent undertaking' means a parent undertaking as defined in Articles 1 and 2 of Council Directive 83/349/EEC;
'prescribed percentage level' means 20 per cent, 33 per cent or 50 per cent;
'prescribed entity' means any of the following:
(a) an insurance undertaking, a credit institution or an investment firm authorised by a competent authority of another Member State;
(b) the
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