Summary procedure for enquiries: Chairman or member may appoint senior officer, accept representations, and issue common orders. The amendment treats a sub-broker as ceasing to be a sub-broker when its affiliated stock broker is declared a defaulter or has its registration suspended or cancelled. It authorises the Chairman or member to appoint a Board officer (not below Assistant General Manager or Assistant Legal Advisor) to give recommendations under the summary procedure for regulation 15 matters, allows dispensing with that appointment on an intermediary's representation, requires the procedure where surrender is not accepted, and permits issuance of common orders for multiple intermediaries with substantially similar subject matter.