Section 1286.250  Checking Approved PBTs for Accuracy

PBTs shall be checked for accuracy by a BAT or an individual specially trained to perform PBT accuracy checks at least once every 93 days.  To be accurate, the PBT must quantitate a reference sample within 10 percent of the reference sample's value, as adjusted for environmental factors.

(Source:  Amended at 35 Ill. Reg. 18897, effective October 31, 2011)