Central cash book requirements mandate strict entries, vouchers, reconciliations and daily cash verification for official liquidations. The Central Cash Book, kept by the Official Liquidator for all liquidations, requires chronological, descriptive entries of receipts and payments with immediate posting to Cash or Bank. Transfers between cash and bank, reversal of dishonoured cheques, separate chalans per company, consecutively numbered vouchers and counterfoil receipts are mandatory. Only weekly trading totals and daily dividend totals (with individual payments recorded separately) are brought into the Central Cash Book. Cash Books must be machine numbered, daily balanced, subject to daily and monthly cash verification, monthly bank reconciliation, monthly closure under the Liquidator's attestation, and consolidation of company balances with a monthly certification.