I don't need to prove anything.
Of course you think you don't. You claim whatever you want, whether it's true or not. Facts be damned.
If you think my statement is wrong, then you are free to provide counter evidence. However, the burden of proof is not on me to prove a negative.
You're the one that made the statement you can't back up. Let's start with the easy part: where in the article did it say mandatory breathalyzer tests were happening? All I saw in there was a recommendation by someone.
I know you people get all mad whenever we talk about the drunken Antarctic scientists. I would be upset too if the people whom I am looking to prove the shape of the world end up being drunk all the time. I feel for you, bro.
You don't feel you need to justify your claim of "universally drunken Antarctic scientists" with no evidence for it? No surprise there. Again, facts be damned. You do this all the time. It does get a bit old, but, then this is The Flat Earth Society forum, so a moderator playing fast and loose with the truth is not unexpected.
Oh, yes... since you asked:
https://www.lifeloc.com/petroleum.aspx. There goes the other part of your statement.
With private industry, what's constitutional or not isn't relevant. Private companies can require agreement to substance-abuse testing as a condition of employment; an individual is always free to refuse testing, but that can be grounds for dismissal.
[Edit] Remove extraneous 'the'