The control of a subsidiary record or ledger by the use of a control account.
Ledger control is limited to a proof that all items were recorded in the subsidiary record or that they were accurately made, as required, to the debit and credit sides of that record. It does not furnish proof that every item was recorded in its proper account in the subsidiary record.
N.Y. Comp. Codes R. & Regs. Tit. 10 § 451.172