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CR-221Optional

Order to Install Ignition Interlock Device

California · Judicial Council of California · Effective January 1, 2021

This form is an official court order that tells a person they must have an ignition interlock device installed on cars they use. It lists specific rules about when the device must be installed and how often it must be checked.

The court describes it as: States a court's decision that an offender must have an ignition interlock device installed into cars the offender uses.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Judgment

Stage: Judgment

This form is used by the court to officially order an ignition interlock device for a defendant after a court decision.

Prepared by the court or clerk.

Official instructions

How-to guides published by the court for this form.

Common questions

Who fills out this form?
The court uses this form to issue the order to the defendant. The defendant signs to show they received the order.
Does this form require a fee?
The provided text does not mention any filing fees for this form.
What happens if I break the rules in this order?
The form lists several actions that are considered violations, and some violations are misdemeanors that can result in jail time and/or a fine.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2021.

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