What is an Ignition Interlock Device / IID “Violation” in Oregon?

The answer to this question is in OAR 737-005-0021. It explains:

(17) “Test Violation” means:

(a) Any attempt to start the vehicle by a person with a BrAC of 0.040 or higher unless a subsequent test performed within 10 minutes registers a BrAC lower than 0.040 and the digital images confirm the same person provided both samples;

(b) Failure to take any random retest unless a review of the digital image confirms that the vehicle was not being operated by the person required to have the IID at the time of the missed test; or

(c) Failure to pass any random retest due to a BrAC of 0.020 or higher unless a subsequent test performed within 10 minutes registers a BrAC lower than 0.020, and the digital images confirm the same person provided both samples.