Interlock Blog

Driver in a navy work jacket parked on a quiet tree-lined street, holding an ALCOLOCK ignition interlock handset that reads Ready for test before the start-up breath test
BACtrack Drive vs LifeSafer in California
LifeSafer advertises the lower daily rate, but over six months the published totals overlap. The real difference sits in installation, calibration, and removal fees. Here is how BACtrack Drive and... Read more...
Driver in a sweater parked in a California apartment lot at golden hour, holding an ALCOLOCK ignition interlock handset that reads Ready for test before the start-up breath test
BACtrack Drive vs Intoxalock in California
Both advertise $99 a month. The real difference is everything that comes after: installation, calibration visits, lockout codes, and removal. Here's what a six-month ignition interlock program actually costs with... Read more...
Driver parked in a driveway holding an ALCOLOCK ignition interlock handset that reads Ready for test, with a plain envelope and folder on the passenger seat, before the start-up breath test
What You Need to Know About Ignition Interlock Devices (September 2026)
"All-offender" sounds like one rule. It isn't. A first DUI can trigger an interlock order from the DMV, from the court, or from both tracks running on separate timelines with... Read more...
Driver seated in a car holding an ALCOLOCK AL-2500 ignition interlock device that reads Ready for test, before the start-up breath test
What is an Ignition Interlock Device? How an IID Works
An IID doesn't just check you once. It keeps testing while you drive, and a failed rolling retest won't cut the engine mid-trip. Read more...
Hand holding an ALCOLOCK ignition interlock device inside a car beside a folded DMV notice letter and a California driver license, representing California's ignition interlock requirement after a DUI
California Ignition Interlock Program: DMV Rules and What's Required After a DUI
A guide to California's ignition interlock device requirement after a DUI — covering who needs one, how long the DMV mandates it, what counts as a violation, and how to... Read more...
Hand holding an ALCOLOCK ignition interlock device in front of an open car engine bay with a battery and jumper cables, representing how an interlock draws power from the car battery
Will an Ignition Interlock Drain Your Car Battery? IID Battery Care Guide
What ignition interlock users need to know about battery drain — how the device draws power while parked, whether a dead battery counts as a violation, and practical steps to... Read more...
ALCOLOCK ignition interlock device standing on a service-center counter beside a checklist and pen, representing comparing interlock devices before installation
Best Ignition Interlock Device: 7 Things to Compare Before You Install
Comparison guide for California court-ordered IID programs. Covers DMV certification, total cost, service center proximity, ease of use, reporting method, calibration schedule, and support quality. Read more...
Hand holding an ALCOLOCK ignition interlock device showing a violation alert inside a car beside an official notice, representing ignition interlock device violations
Ignition Interlock Device Violations: What Triggers a Violation and How to Avoid Them
California ignition interlock violations explained — all ten violation categories from court order ID-100, what triggers DMV reporting, how false positives work, and the habits that keep your restriction period... Read more...
Hand holding an ignition interlock device inside a car with a calculator and receipts on the dashboard, representing California ignition interlock program costs
How Much Does an Ignition Interlock Cost in California?
A typical California ignition interlock program runs $1,500 to $2,000 over twelve months — well above the monthly device rate quoted at signup. Here's what every fee layer actually costs... Read more...
Parked vehicle interior with keys and paperwork on a quiet California road
First-Time DUI & IID in California: 2026 Requirements
California's first-time DUI IID requirement depends on one factor: whether injury was involved. No-injury offenses are discretionary; injury offenses trigger a mandatory 1-year IID. Here's how the 2026 framework works. Read more...
Technician holding an ALCOLOCK ignition interlock device inside a vehicle at a service center
IID Installation Sacramento: Costs, Locations & Checklist
Everything Sacramento drivers need before their IID installation appointment — where to go, what to bring, what it costs, and how California's income-based discount program works. Read more...