Florida’s Intoxilyzer 9000

Florida is currently in the middle of a massive statewide upgrade to replace the Intoxilyzer 8000 with the Intoxilyzer 9000. The Intoxilyzer 8000 has been in use in Florida since 2006. Because parts are becoming scarce and the machines are aging, the Florida Department of Law Enforcement (FDLE) began the transition to the Intoxilyzer 9000.

The Intoxilyzer 9000 is an evidential breath-testing instrument used by law enforcement to measure a person’s breath alcohol concentration (BrAC). Manufactured by CMI, Inc., it is the modern successor to the Intoxilyzer 8000 and is currently being phased in across Florida, where it is expected to become the primary evidentiary tool in 2026.

As of March 2026, many agencies in Florida (including the Tampa area) have already received the units or are in the process of training “Agency Inspectors” to certify the machines for courtroom use. In 2026, at least 13 Breath Test Operator Courses for the Intoxilyzer 9000 are being offered throughout the state.

Attorneys for the Intoxilyzer 9000 in Florida

While the marketing material claims the Intoxilyzer 9000 is more accurate and reliable, the machine is still susceptible to errors that a defense attorney can challenge:

• Mouth Alcohol:
  • If a subject burps or has “GERD” (acid reflux), residual alcohol from the stomach can enter the mouth and spike the reading.
  • The 9000’s histogram is supposed to flag this, but it isn’t always foolproof.
• Calibration Stability:
  • The machine must be checked against a “dry gas” or “wet bath” standard.
  • If the machine’s internal temperature or the gas pressure is off, the results can be invalidated.
• Radio Frequency Interference (RFI):
  • Like its predecessors, high-powered radios or cell phones used too close to the machine can theoretically trigger an “RFI Detected” error and abort the test.

If you were arrested for DUI in Florida and submitted to a breath test on Florida’s newly implemented Intoxilyzer 9000, then contact an experienced attorney at Sammis Law Firm.

Call 813-250-0500.

Certification to Administered DUI Breath Tests on the Intoxilyzer 9000

The Breath Test Operator courses and permits for the Intoxilyzer 8000 and Intoxilyzer 9000 instruments are not interchangeable.

When operating the Intoxilyzer 9000, a breath test operator must conduct a breath test in accordance with the applicable operating procedures. The results of the test must be recorded on the Breath Alcohol Test Affidavit- Intoxilyzer 9000 FDLE/ATP Form 38a.

How Does the Intoxilyzer 9000 Work?

The Intoxilyzer 9000 uses Infrared (IR) Spectroscopy to detect alcohol. Molecules like ethanol absorb specific wavelengths of infrared light. The machine projects a beam of IR light through a sample chamber filled with the subject’s breath. The more alcohol molecules present, the more IR light is absorbed. A detector measures the remaining light, and a microprocessor converts that data into a numerical BrAC reading.

Unlike older models that used mechanical parts (choppers) to pulse the light, the 9000 uses a digitally controlled pulsed source, which reduces mechanical failure and improves accuracy.

The Intoxilyzer 9000 uses four different IR wavelengths to help distinguish between ethanol and “interferents” (like acetone or mouthwash). It can generate a visual graph (histogram) of the breath flow and alcohol content during the actual blow. It features a 7-inch color touch screen, making it more user-friendly for officers than the older text-scrolling models.

The Intoxilyzer 9000 is designed to upload test results and calibration logs directly to a centralized server (like the FDLE database) for easier tracking.

When Florida Began Purchasing the Intoxilyzer 9000

At the Criminal Justice Standards and Training Commission Meeting in Orlando, on February 15, 2024, Director Chad Brown made announced:

• the Intoxilyzer 9000 should be available in early 2025;
• it was currently going through instrument testing at FDLE’s Alcohol Testing Program (ATP);
• the breath test operator and agency inspector curricula were being developed; and
• the division is working internally with ITS and the vendor on the cloud-based breath test database.

The committee notes for the Criminal Justice Standards and Training Commission Meeting in October 2025 provided:

Alcohol Testing Program (ATP) Update — Senior Management Supervisor Shayla Platt updated the commission on the Intoxilyzer 9000. She stated that FDLE is purchasing 520 instruments, and the first 110 instruments will be assigned to the training centers. The first breath test instructor course will be from December 1 – 5, 2025, at the Southwest Florida Public Service Academy followed by a course from January 26 – 30, 2026, at FDLE in Tallahassee.

The course will teach current instructors how to teach students to use the Intoxilyzer 9000. The course will grant instructors the following instructor permits: breath test operator, agency inspector, and breath test instructor. These permits will allow instructors to teach courses statewide. During the training courses, they will be able to take home the instruments that will be utilized at the training centers, enabling them to begin training immediately. Beginning in February, notifications regarding training deadlines will be distributed to all agencies to inform them of the timeline for receiving their Intoxilyzer 9000, including when they need to have personnel trained to receive devices. Ms. Platt stated that they anticipate the instrument going into evidential use around July or August 2026, stating that date if very fluid because it’s dependent on the completion of the infrastructure needed for the instruments to be able to upload data.

Comments: Commissioner Pearson asked if Ms. Platt had the list of agencies that would receive the first instruments. She advised that she did not have the list currently; however, state agencies are at the top of the list. Agencies like Florida Highway Patrol and FWC will get them first, and then all other agencies will receive them. Chairman Ford asked if she would email the list to staff, so it can be distributed to the commission.

Forms for the Intoxilyzer 9000

The Operational Procedures for the Intoxilyzer 9000 are listed on FDLE/ATP Form 37a, created September 2025, effective date July 2026, hereby incorporated by reference.

Other forms related to the Intoxilyzer 9000 include:

• The Department Inspection Procedures are found in FDLE/ATP Form 36a.
• The Breath Alcohol Test Affidavit for the Intoxilyzer 9000 are found in Form 38a.
• The Agency Inspection Procedures for the Intoxilyzer 9000 are found in FDLE/ATP Form 39a.
• The Department Inspection Report for the Intoxilyzer 9000 are found in FDLE/ATP Form 41a.
• The Agency Inspection Report for the Intoxilyzer 9000 are found in FDLE/ATP Form 40a.
• The Department Inspection Report for Intoxilyzer 8000 are found in FDLE/ATP Form 41.

What are the Differences Between the Intoxilyzer 8000 and the Intoxilyzer 9000?

As Florida completes its transition in early 2026, understanding the technical leap from the Intoxilyzer 8000 to the Intoxilyzer 9000 is critical for any DUI defense. While both machines rely on infrared (IR) spectroscopy, the 9000 is a significantly more “software-driven” device with hardware upgrades that change how we challenge the evidence in court.

The transition to the 9000 means the “old” ways of getting a breath test thrown out (like mechanical chopper failure) are gone. However, the Intoxilyzer 9000 has created a new frontier of Software and Flow Analysis defenses. If you have been tested on a Intoxilyzer 9000 in Tampa or the surrounding areas, we can audit the digital “COBRA” data to look for the specific histogram errors and software glitches that are unique to this new machine.

Hardware: The Shift to Pulsed IRThe most significant physical change is how the machine generates the infrared light used to detect alcohol.

Intoxilyzer 8000: Used a continuous IR source with a mechanical “chopper wheel.” This was a physical spinning part that could wear out or fluctuate in speed, leading to mechanical errors.

Intoxilyzer 9000: Uses a digitally pulsed IR source. There are no moving parts in the light source. While this increases reliability, it moves the “fail points” into the software, making the code—rather than the hardware—the subject of legal scrutiny.

Detection: When it goes to Dual vs. Quad Wavelengths, the Intoxilyzer 9000 is significantly better at “seeing” what is in your breath, which is both a benefit and a potential trap.

Intoxilyzer 8000: Primarily utilized two wavelengths (3 microns and 9 microns) to detect ethanol and acetone.Intoxilyzer 9000: Utilizes Quad Wavelength detection. By looking at four distinct points on the infrared spectrum, it is much more sensitive to “interferents.”

Intoxilyzer 9000: Because the Intoxilyzer 9000 is more sensitive, it is more likely to trigger an “Interferent Detected” message. If an officer ignores this and tries to force a re-test without investigating a medical condition (like Ketoacidosis), the defense can argue the officer ignored the machine’s own warning.

Breath Flow: When it comes to Histogram Technology, the way the machines measure “how hard you blow” has been completely redesigned.

Intoxilyzer 8000: Used a pressure transducer to estimate volume. It often struggled with “Flow Sensor” errors where it would report scientifically impossible breath volumes (sometimes as high as 8 or 9 liters).

Intoxilyzer 9000: Features a modern flow thermistor that provides a real-time histogram (graph) of the breath sample.Defense Insight: We can now subpoena the actual graph of your breath. If the graph shows a “choppy” line, it may indicate that the subject didn’t provide a deep lung sample, or that mouth alcohol spiked at the beginning of the blow.

The Operating System: Windows vs. Proprietary

Intoxilyzer 8000: Ran on a very basic, closed-loop proprietary firmware.

Intoxilyzer 9000: Operates on Windows CE 6.0.

Running on a Windows-based platform means the machine is subject to the same types of “glitches” as a computer. In 2026, defense teams are looking at how background processes or memory leaks in the Windows environment might affect the machine’s timing during a critical breath sample.

This article was last updated on Friday, February 27, 2026.