DOT is the Dept. of Transportion, I believe.
It should just be a drug panel screen using EMIT analysis, with GC/MS confirmation testing (what you are referring to with regards to 99.99% accuracy) on a positive result. The GC/MS is only performed if the sample fails the EMIT analysis, I believe.
If you take B vitamin and heavily dilute, the urine won't look strange as the heavily dilution will only give the sample a mild yellow color, not florescent as with a non-diluted sample.
So I passed my test on the 35th day.
I pretty much tested my urine using meditests everyday during the period.
As I noted before I have used for years, usually about a 1/4 a week.
I started passing non-forced diluted specimens on the 16th day.
I failed morning piss (1st piss of the day) up...
I am in my 30s and have been smoking pretty regularly for about 10 years. In the past 3 months, I would smoke about 1/4 every 10 days or so, but have had some months during the year without smoking. I have a urine test in about 4 weeks. I have stopped smoking, been exercising, and eating right...