Wisconsin Administrative Code
Department of Transportation
Chapter Trans 311 - Breath Alcohol Testing, Approval And Permit Program
Section Trans 311.10 - Procedure for testing and certifying the accuracy of breath alcohol test instruments

Universal Citation: WI Admin Code ยง Trans 311.10

Current through February 26, 2024

(1) All quantitative breath alcohol test instruments approved for use in this state shall be tested and certified for accuracy in accordance with the following standards:

(a) Each instrument shall be tested and certified for accuracy before regular use and periodically thereafter pursuant to s. 343.305(6) (b) 3, Stats.

(b) Each test for accuracy shall include, but not be limited to, an instrument blank analysis and an analysis utilizing a calibrating unit. The result of the calibrating unit analysis shall fall within 0.01 grams of alcohol per 210 liters of the established reference value.

(c) The original reports of instrument maintenance and certifications shall be forwarded to and retained by the department.

(2) Each qualitative breath alcohol test instrument approved for use in this state shall be checked for accuracy as follows:

(a) The instrument shall be checked by an individual holding a valid permit for the operation thereof.

(b) The checks shall be conducted at intervals established by the department.

(c) Each check shall consist of an analysis utilizing a calibrating unit, the results of which shall fall within tolerances established by the department.

(3) Reference solutions for use in calibrating units shall have the approval of the chief of the chemical test section.

(a) Each reference solution shall be identified with a lot number.

(b) An assay report for each lot of reference solution shall be retained by the department specifying the amount of alcohol per milliliter of solution and the predicted result when used in a calibrating unit with a breath alcohol test instrument.

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