‹ CSD-3.10.4 CSD-3.11 Duty Not to Acquire or Deal in Deposited Securities by a Licensed Central Depository › CSD-3.10.5 All such records to be maintained for a minimum period of 10 years as required under the CBB law. ‹ CSD-3.10.4 CSD-3.11 Duty Not to Acquire or Deal in Deposited Securities by a Licensed Central Depository ›