DES MOINES, Iowa (WHO-TV) — Several years ago the state expanded who needed to get an ignition interlock device (IID); making sure all those who had an operating while intoxicated charge had to use an IID if they wanted to apply for a temporary restricted license. The Iowa Senate passed Senate File 2261 on Monday afternoon 39-8, which adds a couple of changes to current state code that tries to avoid false positive samples.

The bill adds in waivers for those with medical conditions that limits their ability to blow into an IID. It also adds that the removal of a device without authorization is counted as ‘tampering’ and will be charged as such. Along with changing the language in code, where a person needs the device installed to their primary vehicle, but not every vehicle they have access too.

The senate also approved changes to what counts as a failed test on random IID tests. Currently, if a test is randomly required while an individual is operating a vehicle, it would not be deemed a violation unless the person breaks the .025 blood alcohol concentration threshold. The approved change raises the random test threshold while already operating a vehicle to .04. The reasoning is that false positives are somewhat of a reoccurring theme with these devices, and after so many failed tests, true or not, the individual’s license would be extended even longer.

Along with changes to the threshold, the bill also adds different ladders of penalties. Meaning the more tests that are failed over that limit in a certain day window, the more severe the extension of the fine.

The legislation still needs to work through the Iowa House for a chance to be signed into law.