(1) A designated mortgage credit institution shall ensure that the ratio of the total principal amounts of all mortgage credit assets that it holds to the total prudent market value of the related property assets does not exceed the prescribed percentage. For the purposes of this subsection, the prescribed percentage is 80 per cent or, if the regulations prescribe some other percentage, that other percentage.
(2) If a designated mortgage credit institution holds mortgage credit assets or substitution assets that are located in one or more category B countries, the institution shall ensure that the total prudent market value of those assets, expressed as a percentage of the total prudent market value of all of the mortgage credit assets and substitution assets held by the institution at the relevant time, does not at any time exceed the prescribed percentage. For the purposes of this subsection, the prescribed percentage is 10 per cent or, if an order under subsection (4) specifies some
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