What an Authorization Letter Is and when it applies
An Authorization Letter is a signed document that grants a named person or organization the authority to act on behalf of the letter writer for a specific purpose or transaction. Common uses include authorizing third-party access to accounts, permitting a representative to collect documents, or delegating temporary authority for a specified period. In the United States, electronic Authorization Letters are generally enforceable under the ESIGN Act (15 U.S.C. ch. 96, 2000) and state UETA laws, provided the signature meets intent, consent, attribution, and record-retention requirements.