Form: 

DS-21

Department of Motor Vehicles Ordered Interlock Device Installation Confirmation
DS-21

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Summary

The New York State DMV form DS-21, titled "Interlock Device Installation Confirmation," is a mandatory document used to verify the installation of an ignition interlock device (IID) in a motorist's vehicle. The form is divided into sections for the motorist and the installer: the motorist provides personal identification and a list of all owned or operated vehicles, while the installer certifies the specific IID model installed and confirms that all operators have been trained on its use.

Key legal provisions include a formal certification where the motorist acknowledges the requirement to maintain an IID on all vehicles they own or operate, including any acquired in the future. The document contains explicit warnings that providing false information is a criminal offense, potentially leading to misdemeanor or felony charges under New York Vehicle and Traffic Law. Once completed and signed by both parties, the form must be faxed or emailed to the DMV by the installer, and the motorist must present the original at a DMV office to obtain a driver license with a "Problem Driver Interlock Restriction."

Pro Tip: To avoid legal complications or licensing delays, ensure you present a photo ID to the installer and accurately list all vehicles you own or operate on the DS-21 form. After installation, verify the installer has sent the confirmation to the DMV and remember to bring the original form to a Motor Vehicles office to obtain your license with the required interlock restriction.

⚠️ Disclaimer
The form summaries, instructions, and "Pro Tips" provided on this website are for informational purposes only. While we strive to keep this information accurate, up-to-date, and easy to understand, official motor vehicle policies, form requirements, and state regulations change frequently. This content does not constitute formal legal or regulatory advice. For absolute accuracy, official guidelines, or further clarification regarding any New York State form or requirement, please consult the official New York State Department of Motor Vehicles (NYS DMV) directly.

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