
Florida drivers who are convicted of a DUI offense may be required by the court to install an ignition interlock device (IID) in all their vehicles for a certain amount of time. An IID is a small device that is installed in a vehicle and requires that the driver blow their breath into it, to start.
The device measures alcohol levels in the driver’s breath and will not allow the care to initiate if the BAL exceeds the limits.
Have you been ordered by a Florida court to install an ignition interlock device, commonly known as a breathalyzer? Here's what you need to know.
Florida Ignition Interlock Device Requirements
The amount of time Florida drivers are ordered to utilize an IID will depend on the circumstances of the case and number of offenses. According to the Florida Department of Highway Safety and Motor Vehicles (FLHSMV), an individual may be required to have an IID installed:
Florida IID Service Providers
According to the Florida Department of Highway Safety and Motor Vehicles (FLHSMV), those who were convicted of a DUI after July 1, 2002, can utilize the IID program once they become eligible for driver license reinstatement. After the “P” mark restriction is issued, the driver may contact an approved service provider listed on the Florida Highway Safety and Motor Vehicles website to install the IID.
According to the Florida Safety Council, the average cost a convicted driver may pay for an IID is $70.00 for the installation and $65-$70 for the monthly monitoring.
Drivers who operate a vehicle without a mandated IID may have their licenses revoked.
Driving a company vehicle
Employees who regularly drive their company’s vehicles must obtain written permission from their Employers. The letter allows drivers to operate the vehicle for job-related task without the mandated IID. FLHSMV suggests drivers keep the letter with them in case they are stopped for a traffic violation.
What will cause an IID violation?
A vehicle will not begin at an IID measure of a BAC higher than 0.025. For certain cases, a judge may require the level to be lower.
According to FLHSMV, the driver is in violation if:
This article is intended to convey generally useful information only and does not constitute legal advice. Any opinions expressed are solely those of the author, not LawChamps.
The device measures alcohol levels in the driver’s breath and will not allow the care to initiate if the BAL exceeds the limits.
Have you been ordered by a Florida court to install an ignition interlock device, commonly known as a breathalyzer? Here's what you need to know.
Florida Ignition Interlock Device Requirements
The amount of time Florida drivers are ordered to utilize an IID will depend on the circumstances of the case and number of offenses. According to the Florida Department of Highway Safety and Motor Vehicles (FLHSMV), an individual may be required to have an IID installed:
- 6 months minimum for first offenses, if BAL is 0.15, or a minor in the car
- 2 years minimum for second and third-time offenses, if BAL is 0.15 o a minor in the car
- 5 years minimum - Four or more offenses
Florida IID Service Providers
According to the Florida Department of Highway Safety and Motor Vehicles (FLHSMV), those who were convicted of a DUI after July 1, 2002, can utilize the IID program once they become eligible for driver license reinstatement. After the “P” mark restriction is issued, the driver may contact an approved service provider listed on the Florida Highway Safety and Motor Vehicles website to install the IID.
According to the Florida Safety Council, the average cost a convicted driver may pay for an IID is $70.00 for the installation and $65-$70 for the monthly monitoring.
Drivers who operate a vehicle without a mandated IID may have their licenses revoked.
Driving a company vehicle
Employees who regularly drive their company’s vehicles must obtain written permission from their Employers. The letter allows drivers to operate the vehicle for job-related task without the mandated IID. FLHSMV suggests drivers keep the letter with them in case they are stopped for a traffic violation.
What will cause an IID violation?
A vehicle will not begin at an IID measure of a BAC higher than 0.025. For certain cases, a judge may require the level to be lower.
According to FLHSMV, the driver is in violation if:
- Two breath test results are above the IID limit when starting the car
- Missing a required rolling re-test after the vehicle has started
- Testing above the BAL limit for required rolling re-test after the vehicle has started
- Any indication or evidence of equipment tampering
This article is intended to convey generally useful information only and does not constitute legal advice. Any opinions expressed are solely those of the author, not LawChamps.

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