Evidential Breath Testing Device (EBT)
What is an Evidential Breath Test?
An Evidential Breath Testing Device (EBT) is a device approved by NHTSA for the evidential testing of breath at the .02 and .04 alcohol concentrations, placed on NHTSA's Conforming Products List (CPL) for "Evidential Breath Measurement Devices" and identified on the CPL as conforming with the model specifications available from NHTSA's Traffic Safety Program.
Frequently Asked Questions About EBTs
PLEASE NOTE: the information provided on this site is intended to inform, but not to train! You must be trained by a professional in order to conduct and EBT test! For more information, see Evidential Breath Test Training (EBT)
EBTs and ASDs on the NHTSA conforming products lists (CPL) for evidential and non-evidential devices are the only devices you are allowed to use to conduct alcohol screening tests under this part. You may use an ASD that is on the NHTSA CPL for DOT alcohol tests only if there are instructions for its use in this part. An ASD can be used only for screening tests for alcohol, and may not be used for confirmation tests.
[65 FR 79526, Dec. 19, 2000, as amended at 66 FR 41954, Aug. 9, 2001]
(a) EBTs on the NHTSA CPL for evidential devices that meet the requirements of paragraph (b) of this section are the only devices you may use to conduct alcohol confirmation tests under this part. Note that, among devices on the CPL for EBTs, only those devices listed without an asterisk (*) are authorized for use in confirmation testing in the DOT alcohol testing program.
(b) To conduct a confirmation test, you must use an EBT that has the following capabilities:
(1) Provides a printed triplicate result (or three consecutive identical copies of a result) of each breath test;
(2) Assigns a unique number to each completed test, which the BAT and employee can read before each test and which is printed on each copy of the result;
(3) Prints, on each copy of the result, the manufacturer's name for the device, its serial number, and the time of the test;
(4) Distinguishes alcohol from acetone at the 0.02 alcohol concentration level;
(5) Tests an air blank; and
(6) Performs an external calibration check.
(a) As an EBT manufacturer, you must submit, for NHTSA approval, a quality assurance plan (QAP) for your EBT before NHTSA places the EBT on the CPL.
(1) Your QAP must specify the methods used to perform external calibration checks on the EBT, the tolerances within which the EBT is regarded as being in proper calibration, and the intervals at which these checks must be performed. In designating these intervals, your QAP must take into account factors like frequency of use, environmental conditions (e.g., temperature, humidity, altitude) and type of operation (e.g., stationary or mobile).
(2) Your QAP must also specify the inspection, maintenance, and calibration requirements and intervals for the EBT.
(b) As the manufacturer, you must include, with each EBT, instructions for its use and care consistent with the QAP.
(c) As the user of the EBT (e.g., employer, service agent), you must do the following:
(1) You must follow the manufacturer's instructions (see paragraph (b) of this section), including performance of external calibration checks at the intervals the instructions specify.
(2) In conducting external calibration checks, you must use only calibration devices appearing on NHTSA's CPL for “Calibrating Units for Breath Alcohol Tests.”
(3) If an EBT fails an external check of calibration, you must take the EBT out of service. You may not use the EBT again for DOT alcohol testing until it is repaired and passes an external calibration check.
(4) You must maintain records of the inspection, maintenance, and calibration of EBTs as provided in §40.333(a)(2).
(5) You must ensure that inspection, maintenance, and calibration of the EBT are performed by its manufacturer or a maintenance representative certified either by the manufacturer or by a state health agency or other appropriate state agency.
As the BAT or STT, you must take the following steps:
(a) Select, or allow the employee to select, an individually wrapped or sealed mouthpiece from the testing materials.
(b) Open the individually wrapped or sealed mouthpiece in view of the employee and insert it into the device in accordance with the manufacturer's instructions.
(c) Instruct the employee to blow steadily and forcefully into the mouthpiece for at least six seconds or until the device indicates that an adequate amount of breath has been obtained.
(d) Show the employee the displayed test result.
(e) If the device is one that prints the test number, testing device name and serial number, time, and result directly onto the ATF, you must check to ensure that the information has been printed correctly onto the ATF.
(f) If the device is one that prints the test number, testing device name and serial number, time and result, but on a separate printout rather than directly onto the ATF, you must affix the printout of the information to the designated space on the ATF with tamper-evident tape or use a self-adhesive label that is tamper-evident.
(g) If the device is one that does not print the test number, testing device name and serial number, time, and result, or it is a device not being used with a printer, you must record this information in Step 3 of the ATF.
As the BAT conducting an alcohol confirmation test, you must follow these steps in order to complete the confirmation test process:
(a) In the presence of the employee, you must conduct an air blank on the EBT you are using before beginning the confirmation test and show the reading to the employee.
(1) If the reading is 0.00, the test may proceed. If the reading is greater than 0.00, you must conduct another air blank.
(2) If the reading on the second air blank is 0.00, the test may proceed. If the reading is greater than 0.00, you must take the EBT out of service.
(3) If you take an EBT out of service for this reason, no one may use it for testing until the EBT is found to be within tolerance limits on an external check of calibration.
(4) You must proceed with the test of the employee using another EBT, if one is available.
(b) You must open a new individually wrapped or sealed mouthpiece in view of the employee and insert it into the device in accordance with the manufacturer's instructions.
(c) You must ensure that you and the employee read the unique test number displayed on the EBT.
(d) You must instruct the employee to blow steadily and forcefully into the mouthpiece for at least six seconds or until the device indicates that an adequate amount of breath has been obtained.
(e) You must show the employee the result displayed on the EBT.
(f) You must show the employee the result and unique test number that the EBT prints out either directly onto the ATF or onto a separate printout.
(g) If the EBT provides a separate printout of the result, you must attach the printout to the designated space on the ATF with tamper-evident tape, or use a self-adhesive label that is tamper-evident.
[65 FR 79526, Dec. 19, 2000, as amended at 66 FR 41954, Aug. 9, 2001]
(a) After the EBT has printed the result of an alcohol confirmation test, you must, as the BAT, take the following additional steps:
(1) Sign and date Step 3 of the ATF.
(2) If the alcohol confirmation test result is lower than 0.02, nothing further is required of the employee. As the BAT, you must sign and date Step 3 of the ATF.
(3) If the alcohol confirmation test result is 0.02 or higher, direct the employee to sign and date Step 4 of the ATF. If the employee does not do so, you must note this on the “Remarks” line of the ATF. However, this is not considered a refusal to test.
(4) If the test is invalid, tell the employee the test is cancelled and note the problem on the “Remarks” line of the ATF. If practicable, conduct a re-test. (see §40.271).
(5) Immediately transmit the result directly to the DER in a confidential manner.
(i) You may transmit the results using Copy 1 of the ATF, in person, by telephone, or by electronic means. In any case, you must immediately notify the DER of any result of 0.02 or greater by any means (e.g., telephone or secure fax machine) that ensures the result is immediately received by the DER. You must not transmit these results through C/TPAs or other service agents.
(ii) If you do not make the initial transmission in writing, you must follow up the initial transmission with Copy 1 of the ATF.
(b) As an employer, you must take the following steps with respect to the receipt and storage of alcohol test result information: Page 57 of 101
(1) If you receive any test results that are not in writing (e.g., by telephone or electronic means), you must establish a mechanism to establish the identity of the BAT sending you the results.
(2) You must store all test result information in a way that protects confidentiality.
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