CA DMV Form DL 921. Notice of Non-Compliance Ignition Interlock
Form DL 921, also known as the "Notice of Non-Compliance Ignition Interlock," is a document issued by the California DMV to notify individuals who have been granted an ignition interlock device (IID) restriction that they have failed to comply with the IID requirements.
The purpose of this form is to inform the recipient that there has been a violation or non-compliance related to their use of the IID. It serves as an official notice from the DMV and provides details regarding the specific violation or violations detected.