In this Chapter -
''assessment" and "assessment period" have the meanings given by Regulation 63(3);
''prescribed percentage" means 20%, 33% or 50%;
''proposed acquirer", in relation to an insurance undertaking or reinsurance undertaking, means a person, or 2 or more persons acting in concert, who has or have taken a decision to, directly or indirectly, acquire or increase a qualifying holding in the undertaking;
''proposed acquisition", means - (a) the proposed acquisition of a qualifying holding in an insurance undertaking or reinsurance undertaking, or (b) a proposed increase in a qualifying holding in such an undertaking that results in the size of the holding reaching or exceeding a prescribed percentage.