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Document index numbers (DLNs) are used primarily for financial documents. They are unique numbers that individuals or organizations to more documents quickly find much. Licenses for your own document index NumbersDrivers and passes were DLNs.Your licenses was a RAD. A license is often as ID used when completed a financial transaction, such as writing a check at the store. The Registrar can write the FDR on the back of the check. If there is a problem, the FDR can the authorities to find you. Passport to a unique used DLN.Internal Revenue ServiceThe IRS DLNs.The internal revenue service documents such as statements of income and tests with DLNs stamps has. If the Agency needs to find a document at a later date, the FDR helps to make the so.Business and personal DLNsHow if you organize your documents? Companies use DLNs time - controls on revenue, order forms. If you have questions about a transaction, the FDR helps to find the information you need. Individuals can set up your own systems to DLNs. Instead of a shoe box full of revenue and a more complete controls such as can keep a system of FDR home the task to manage much easier.