Regulation 21 of the Principal Regulations is amended as follows:(a) by inserting in subregulation (1) "at least once in" after "account" ;(b) by omitting from subregulation (2) "reconciles" and substituting "must reconcile" ;(c) by omitting paragraph (b) from subregulation (2) and substituting the following paragraph:(b) preparing a schedule to reconcile the balance of the trust account cash books calculated under paragraph (a) with the balance of the trust account (i) as specified in the statements issued by the approved institution; and(ii) taking into account unpresented payments, deposits in transit and other adjustments; and(d) by omitting from subregulation (2)(c)(iii) "matched amount in paragraph (b) " and substituting "balances referred to in paragraphs (a) and (b) " .