Affirmation Under Section 318 (9) and 318 (11) of the New York Vehicle and Traffic Law is a form of certification that the vehicle registered in New York State is owned by the person making the affirmation. It is intended to be used as proof of ownership for registration or title purposes. There are two types of Affirmation Under Section 318 (9) and 318 (11) of the New York Vehicle and Traffic Law: Affirmation Under Section 318 (9) and Affirmation Under Section 318 (11). The Affirmation Under Section 318 (9) is used by individuals who are the only registered owner of the vehicle. The Affirmation Under Section 318 (11) is used by individuals who are one of two or more registered owners of the vehicle. Both forms require the individual to certify that they are the owner of the vehicle, provide the vehicle's registration information, and swear to the accuracy of the information.