Final answer:
The signature on form 8130-3 verifies the quality of the product or article, indicating that it conforms to manufacturing and quality assurance standards necessary for aviation safety.
Step-by-step explanation:
The signature on form 8130-3 verifies the quality of the product or article. This form, also known as the Airworthiness Approval Tag, is used in the aerospace industry to confirm that parts and components meet specific standards and are suitable for installation on an aircraft. When somebody signs this form, they are attesting that the product or article conforms to the agreed-upon specifications and is in a condition for safe operation, meaning it has met the regulatory requirements pertaining to its manufacture and quality assurance. This signature does not verify the product's origin, price, or destination.