LOA is an official document authorizing third parties to access customer information. It allows third parties to act on customer's behalf within agreed limits. Required by Federal Communications Commission for number porting
Certificate certifies directors, officers, and shareholders of a company. Designates legal authority to make decisions on behalf of the company. Ensures contracts are legally enforceable with authorized signers
Authorization certificate contains attributes associated with holder by issuer. Standardized in X.509 and RFC 5755 for Internet authorization. Works alongside public key certificate (PKC) for authorization
ETO certificate valid for five years, requiring renewal before expiry. Certificate allows electrical and electronic engineering duties on any ship. No prior certification or qualifications required
Letter must include date, sender's details, and recipient information. Subject line should clearly state purpose of letter. Formal greeting and signature required at end. First paragraph should explain purpose and authorized signatory
Authorization letter grants permission to perform specific actions. Used in various contexts like child care, travel, and business transactions. Banks issue authorization letters for account management and transactions