N.Y. Comp. Codes R. & Regs. tit. 15, § 20.35
The following forms shall be used in conjunction with the administration of article 46 of the Vehicle and Traffic Law. The instructions on all forms must be followed and all forms must be appropriately completed in order to be accepted. Notice of lien (Form MV-900). Printed by lender in the following size and format. Size 8½ inches by 5½ inches.