Evidential Breath Alcohol Testing (EBAT)


The Evidential Breath Alcohol Testing (EBAT) program repairs, calibrates and certifies the Intoxilyzer 9000 (I-9000) instruments used statewide to test subjects suspected of driving under the influence of alcohol. The EBAT program also trains and certifies law enforcement officers who perform these tests using the I-9000.
The EBAT Program has established rigorous scientific standards of performance that every Intoxilyzer 9000 used for evidential breath alcohol testing must meet prior to being certified by the department and placed into service. The testing performed on the instruments prior to certification ensures that the results reported by the instruments are at the highest possible level of scientific accuracy, precision and fairness.
The EBAT Program is accredited by the ANSI National Accreditation Board (ANAB) and meets the ISO/IEC 17025:2017 Forensic Science Calibration Laboratories Accreditation Requirements.


Announcement of rule revisions

The Colorado State Public Health Laboratory at the Colorado Department of Public Health and Environment (CDPHE) is conducting a routine review of 5 Code of Colorado Regulations 1005-2 (5 CCR 1005-2), Testing for Alcohol and Other Drugs. 


These regulations establish minimum standards for certification and approval of both entities and their processes that test samples for alcohol and drugs. These samples come from investigations into drug- or alcohol-related crashes or incidents. These rules include collection and testing procedures for samples of blood, urine, or post-mortem specimens; certification requirements for operators and instructors performing Evidential Breath Alcohol Testing (EBAT); and certification requirements for forensic toxicology laboratories


After a review, CDPHE is proposing a series of changes to the rules. The proposed rules may be found at the link above.  


If you have suggestions, concerns, or questions about these proposed rule changes and wish to provide your feedback, you may:


  1. Attend the virtual public listening session on May 16, 2024 from noon - 2 p.m. CDPHE staff will review the proposed rule changes and the rulemaking process, engage in dialogue with attendees, and listen to any suggestions or concerns about the rules. Registration must be done in advance. The registration can be found on this page
  2. Use the online form. CDPHE must receive your comments by May 30, 2024, at 5 p.m.


Feedback submitted at this time is for consideration by CDPHE in drafting the proposed rules and will not be transmitted to the Board of Health.


CDPHE will submit a packet with the proposed rules to the Board of Health to request an official rulemaking hearing on July 17, 2024. If the request is granted, stakeholder engagement and feedback will continue until the rulemaking hearing on September 18, 2024. Refer to the Board of Health webpage for more information about the hearings. 


If you have any concerns or questions about the process or the rules, email cdphe_dcphr_rulemaking@state.co.us

    EBAT Program ANAB ISO/IEC 17025:2017 Accreditation Certificate
     EBAT Program ANAB ISO/IEC 17025:2017 Scope of Accreditation 


(the map image links to Google Maps for directions.)


Find information on Board of Health rules, Breath Alcohol Ignition Interlock Devices (BAIID) and Preliminary Breath Testing Devices (PBT).

Order supplies for the Intoxilyzer, find exception message guides and the I-9000 Operator Manual