I had a chance earlier this morning to speak via telephone to a man who has forgotten more about DOT regulations than I will ever know. Here is a summary of what he told me about the difference between "Drug" and "Alcohol" testing. Remember, Part 40 applies to more than just the FMCSA. Railroad engineers are also subject to these same rules. It's the same for Amtrak Engineers. The "Drug" testing part has many moving parts, and a medical professional is required to make sure the tests are completed correctly and the person gets a chance to speak to this professional if they test positive and there is a legitimate reason for the positive that is not safety related. Hence, the MRO, by rule, has to be that go-between. Alcohol testing, however, really only has 1 moving part, and no interpretations are required. Test over the limit, and you have to do the better, more accurate confirmation test. If you still test over the limit, the person conducting the test fills out step 4 of THIS FORM, and the carrier transmits it to the clearinghouse.
I am also pasting an image of step 4 below. I am not going to get drawn into a debate of what "over the limit" is. I will just point out that right on the testing form, it says .02 or over.
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Fired for failing breathalyzer from Inhaler?
Discussion in 'Questions From New Drivers' started by dboot01, Mar 24, 2025.
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gentleroger, JB7 and hope not dumb twucker Thank this.
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It didn’t come through
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Less than 0.02 an employer is not allowed to take action against the driver (can’t fire)
From 0.02 to 0.039 is considered intoxicated and the employer can take action against the driver (can fire) Driver cannot work until the required time off duty is completed. This does not trigger a positive with the clearinghouse and driver is not required to complete a SAP.
0.04 is a test fail and game over for driver. Positive test is reported to the clearinghouse and driver in now required to complete a SAP.
OP got a 0.02 and his employer was legally allowed to fire him.Last edited: Mar 28, 2025
Reason for edit: Fix error -
There are reasons why you’re allowed up to 0.039 and it has to do with calibration issues.
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What we don't know is if the OP was given a retest. OP has not been back since the original post on Monday. As some have said the OP is not telling the whole story.Gatordude and hope not dumb twucker Thank this. -
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As I stated in post 41, I am not an expert. I can only go by what I see in the actual text of Part 40. Part 40.247 covers the screening test, and Part 40.255 covers the confirmation test. I see no language from comment 54 in either part. I don't think Part 382 has any additional information. So I can only think there is some kind of DOT guidance published that I am not privy to.
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