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Is the Intoxilyzer 9000 Now Used in Central Florida DUI Cases? And How Is It Different From the Intoxilyzer 8000?

Florida state law. Governing rules: Chapter 11D-8, Florida Administrative Code.

Quick Takeaway

Florida police departments have used one breath test machine since 2006: the Intoxilyzer 8000. Now there are two. As of July 17, 2025, Florida’s breath testing rules also recognize a newer machine called the Intoxilyzer 9000.

Both machines are made by the same company. Both follow the same core rules. The difference is that each one now has its own official state operating procedure the officer has to follow, and its own set of records.

If you were arrested for DUI in Orange, Seminole, or Osceola County and you blew into a machine, the first question is simple: which machine was it? The answer changes which procedure applied to your test and which records exist.

This change does not raise or lower the legal limit. It does not change DUI penalties. It changes the procedure, and the paperwork that proves the procedure was followed.

What Is a Breath Test Machine, Exactly?

When you blow into the machine at the jail, it does not test your blood. It tests your breath, and then estimates what your blood alcohol level probably is.

It does this with light. The machine shines an infrared beam through a small chamber holding your breath. Alcohol absorbs some of that light. The more light that gets absorbed, the higher the number the machine reports.

Both the Intoxilyzer 8000 and the Intoxilyzer 9000 work this way. That part did not change.

What Is the Difference Between the Intoxilyzer 8000 and the 9000?

Here is an honest comparison, limited to what Florida’s own official rules actually confirm.

Intoxilyzer 8000 Intoxilyzer 9000
Who makes it CMI, Inc. CMI, Inc. (the same company)
Used in Florida since 2006 Added to the rules on July 17, 2025
Operating procedure Its own state-approved procedure Its own separate state-approved procedure
How many decimal places Not confirmed Three (for example, 0.082)
Waiting period before the test 20 minutes 20 minutes
Two breath samples required Yes Yes
The two samples must be within 0.020 of each other 0.020 of each other
If they are not close enough A third sample A third sample, requested automatically

The short version

The 9000 is newer. It has a modern screen, and the officer can swipe or scan your driver license instead of typing everything in by hand. But it is built by the same manufacturer, it uses the same light-based method, and Florida applies the same core rules to both.

You may read online that the 9000 has more filters, faster sensors, a battery, or better accuracy. Some of that may well be true. But those claims come from manufacturer marketing and from other states’ training materials, not from anything Florida has published. We do not repeat numbers we cannot show you the source for.

The difference that actually matters

A better machine is still a machine, and it is still operated by a person following a checklist. The 9000 does not do its own paperwork. It does not confirm that the officer waited the required twenty minutes. It does not verify that the equipment was inspected on time.

Those are the things that decide breath test cases, and the new machine did not change a single one of them.

What Does the Officer Have to Do on the 9000?

Florida does not leave this to the officer’s judgment. The state sets out a required step-by-step procedure, and the machine will not move forward until each step is completed.

Before you even blow, the officer has to enter and confirm several things, including their own name, your driver license, the date and time, the date the machine was last inspected, the gas cylinder’s lot number and expiration date, and the time your twenty minute waiting period started.

Then the machine tests itself. It runs a self-check, and it runs what is called a control test. A control test is basically a practice test using a gas sample with a known alcohol level. If the machine reads that known sample correctly, it is presumably working. That result has to land between 0.075 and 0.085. Not 0.074. Not 0.086.

The machine also runs something called an air blank between every single step. An air blank is the machine checking that the chamber is empty and clean before it measures anything. Every air blank has to read 0.000.

Then you blow. Twice, with a wait in between.

Then the machine tests itself again, running another control test and another self-check on the way out.

Add it up and a routine breath test on the Intoxilyzer 9000 contains eight separate air blanks, two control tests, and two self-checks, on top of everything the officer entered at the start. That is around twenty separate things that each have to come out right.

All of it gets printed and recorded.

What If My Two Breath Samples Did Not Match?

Florida requires two breath samples, and they have to be reasonably close to each other. Specifically, within 0.020.

If they are not, the Intoxilyzer 9000 automatically asks for a third sample. The officer does not make that call. The machine does it on its own.

So if your printout shows three samples, something happened during your test. That is not automatically a defense. But it is a fact, and facts are what a defense is built from.

What About the Twenty Minute Wait?

Florida law says the officer has to reasonably make sure you did not put anything in your mouth, and did not burp or throw up, for at least twenty minutes before the test. This comes from Rule 11D-8.007(3) of the Florida Administrative Code.

The reason is straightforward. Alcohol lingering in your mouth can throw the reading off. The machine is supposed to measure air from deep in your lungs, not from your mouth.

Here is the part most people never hear. The officer types that start time into the machine by hand. The Intoxilyzer 9000 does not verify it. It accepts whatever it is told. Whether the twenty minutes actually happened the way the rule requires is a question answered by records, video, and testimony, not by the machine.

One clarification: this machine is used in several states, and some of them use a shorter waiting period. You may see fifteen minutes mentioned in general articles about the Intoxilyzer 9000. In Florida the number is twenty.

Which Machine Was Used in My Case?

This is the first thing to check, and it is not always obvious.

Florida is in the middle of a changeover. Both machines are now recognized, so a Central Florida agency may be using an 8000, a 9000, or both while the switch happens.

That matters, because the two machines follow separate state-approved procedures and generate separate sets of records. The printed results from your test identify which instrument was used. If you still have your paperwork from the night of your arrest, hold onto it and bring it with you.

Does This Change Apply to My Case?

The rule change took effect July 17, 2025. It applies to breath tests given on or after that date. It does not reach backward and change tests that already happened under the older version of the rules.

What Records Exist, and How Long Do They Last?

More than most people realize, and they do not last forever.

Florida requires each agency to keep inspection reports and repair records for at least three years from the last entry. Machine registrations have to be kept for at least three years after a machine is retired. Gas cylinder certificates have to be kept for at least three years after the agency receives them. This comes from Rule 11D-8.0075 of the Florida Administrative Code.

Those records, plus your printed test results, the officer’s permit, and the inspector’s permit, are the full paper trail behind your number. Three years sounds like a long time. It is not, if nobody asks for the records.

Questions Worth Asking About Your Breath Test

You do not need to answer these yourself. This is what a Florida DUI defense attorney reviews.

  • Which machine was used, the 8000 or the 9000?
  • Did every air blank read 0.000?
  • Did both control tests land between 0.075 and 0.085?
  • Did both self-checks pass?
  • What time was entered for the start of the twenty minute wait, and who was watching?
  • Were the two samples within 0.020, or did the machine ask for a third?
  • Was the gas cylinder expired, and does its lot number match the records?
  • When was the machine last inspected, and what did the inspector write?
  • Was the officer licensed by the state to operate that specific machine?

Every one of those is written down somewhere. Each answer either supports the result or does not.

Why This Matters in Orange, Seminole, and Osceola County

Florida law does not treat a breath test number as automatically correct. Under Sections 316.1932 and 316.1934 of the Florida Statutes, a breath test only counts as valid evidence if it was done substantially the way the Florida Department of Law Enforcement requires. Those requirements are set out in Chapter 11D-8 of the Florida Administrative Code.

A newer machine does not change that. It just means there is now a second approved procedure and a second set of records to go through.

The real question in your case is not whether the Intoxilyzer 9000 is a good machine. It is whether the required steps were followed on your night, and whether the records prove it.

Source Reference

  • Chapter 11D-8, Florida Administrative Code (Implied Consent Program), via the Florida Administrative Code and Register: https://flrules.org/gateway/ruleno.asp?id=11D-8.007
  • Florida Department of Law Enforcement, Alcohol Testing Program: https://www.fdle.state.fl.us
  • Sections 316.1932 and 316.1934, Florida Statutes: https://www.flsenate.gov

Talk to a Central Florida DUI Defense Attorney

If you were arrested for DUI in Orange, Seminole, or Osceola County and took a breath test, that number is only as reliable as the procedure behind it. At Lindsey, Ferry, Parker P.A., we request and review the machine records, the inspection reports, the operator permits, and your printed test results to determine whether your test was done the way Florida’s rules require. Contact our office to discuss your case.

Legal Disclaimer: This article is provided for general informational purposes only and does not constitute legal advice. Reading this post, or contacting our firm through this website, does not create an attorney-client relationship. Laws, administrative rules, and agency procedures change, and the information here may not reflect the most current version. Every case turns on its own facts. If you are facing a DUI charge in Florida, you should consult a licensed Florida attorney about your specific situation. Past results do not guarantee a similar outcome in any future case.