Subject to paragraph CSD-3.9.2, a licensed clearing house may invest any money or assets deposited, or paid in respect of, or in relation to, contracts of customers of a member and held by the licensed clearing house in the course of its clearing or settlement activities, including any money deposited in the trust account in any security, instrument or other form of investment arrangement as the CBB may prescribe, which are low risk and which are not otherwise restricted by the CBB.