Section 1286.220  Checking Approved Evidentiary Instruments for Accuracy

The accuracy of all approved evidentiary instruments used to obtain a breath analysis reading from a subject shall be checked by a BAT.

a)         Accuracy checks are required:

1)         Prior to being placed in operation;

2)         After a breakdown has been repaired; and/or

3)         When an approved evidentiary instrument fails to quantitate the two required accuracy check tests within plus or minus 0.01 BrAC.

b)         Approved evidentiary instruments must quantitate the reference sample within plus or minus 0.01 BrAC to be certified accurate. Accuracy beyond the second digit to the right of the decimal point is not required.

c)         Approved evidentiary instruments shall be adjusted by a BAT when necessary to cause the instruments to quantitate the reference sample within plus or minus 0.01 BrAC.

d)         The accuracy check results shall be recorded in the instrument's logbook or internal memory, or in the central repository.

(Source:  Amended at 28 Ill. Reg. 10017, effective June 30, 2004)