# Road Guard Interlock
> Provider of ignition interlock solutions.

- Canonical entity: https://directory.readyscan.ai/entities/road-guard-interlock-q122811057
- Website listed in the source snapshot: https://roadguardinterlock.com/
- Category: [Companies](https://directory.readyscan.ai/directory/companies)
- Machine record: https://directory.readyscan.ai/discovery/entities/road-guard-interlock-q122811057.json
- Material fingerprint: fnv1a64:e38b167b662f8363
- Entity revision: fnv1a64:18375a610f4325fd
- Published: 2026-10-25
- Modified: 2026-10-25

## Questions & answers
### [How does an interlock device work?](https://directory.readyscan.ai/entities/road-guard-interlock-q122811057#company-answer-content-native-digital-agencies-79d6015d886e3f30-a-65d326bfc92cd21a8b2c)
“When you start your vehicle, you have to blow into a mouthpiece that’s connected to the ignition interlock device, sometimes called an in-car breathalyzer. The interlock device will then measure your breath alcohol concentration (BrAC) and automatically determine whether your BrAC is low enough to allow the car to start.”
Sources: https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/

### [Can an ignition interlock device help me get my driver’s license reinstated?](https://directory.readyscan.ai/entities/road-guard-interlock-q122811057#company-answer-content-native-digital-agencies-79d6015d886e3f30-a-b4b2cb04cd8644dfb102)
“Ignition interlock devices and drunk driving laws vary from state to state. After a DUI, you may be able to get your license reinstated by having an ignition interlock device installed in your car.”
Sources: https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/

### [How do I know if I am eligible for an interlock device?](https://directory.readyscan.ai/entities/road-guard-interlock-q122811057#company-answer-content-native-digital-agencies-79d6015d886e3f30-a-9265b322a303790938f1)
“To find out if you are required or eligible for an ignition interlock device, you should review any documents you received after your DUI/DWI conviction, such as paperwork from the DMV or DOT.”
Sources: https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/

### [How long does the interlock device need to be installed in my vehicle?](https://directory.readyscan.ai/entities/road-guard-interlock-q122811057#company-answer-content-native-digital-agencies-79d6015d886e3f30-a-f7db0d1d679336daf419)
“In many states, interlock devices are offered as an alternative to license suspension and may be mandatory for some offenses. All states have some variation of an ignition interlock law. The interlock device may be required from six months to several years, depending on the severity of your offense and your history.”
Sources: https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/

### [How often do I need to get my interlock device serviced?](https://directory.readyscan.ai/entities/road-guard-interlock-q122811057#company-answer-content-native-digital-agencies-79d6015d886e3f30-a-57fead6360459da3dada)
“RoadGuard Interlock devices must be serviced every 30 to 60 days.”
Sources: https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/

## Company sources
- [Road Guard Interlock website](https://roadguardinterlock.com/) — roadguardinterlock.com
- [roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/](https://roadguardinterlock.com/support/ignition-interlock-device-frequently-asked-questions/) — roadguardinterlock.com · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-c53e2113711b2390)
- [wikidata.org/wiki/Special:EntityData/Q122811057.json](https://www.wikidata.org/wiki/Special:EntityData/Q122811057.json?revision=2433646043) — wikidata.org · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-2dc2a7383654f944)

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