Privacy Act of 1974: Federal law that governs the collection, maintenance, use, and dissemination of personal information maintained by federal agencies. Must be considered when drafting authorization letters for federal documents.

HIPAA: Health Insurance Portability and Accountability Act - Critical if the authorization involves access to medical records or health information.

FERPA: Family Educational Rights and Privacy Act - Must be considered if the authorization involves access to educational records or student information.

Identity Theft and Assumption Deterrence Act: Federal law that makes identity theft a federal crime. Relevant for verification requirements in authorization letters.

State Privacy Laws: Various state-specific privacy regulations that may affect how authorization letters need to be structured and what information can be shared.

State Power of Attorney Rules: State-specific regulations governing how authorization and power of attorney documents must be structured and executed.

Notarization Requirements: State-specific rules regarding when and how documents must be notarized, including remote notarization provisions where applicable.

Agency-Specific Requirements: Different agencies (DMV, hospitals, schools, etc.) may have their own specific format and content requirements for authorization letters.

ID Verification Requirements: Legal requirements for proving the identity of both the authorizer and authorized person, including acceptable forms of identification.