Quote Originally Posted by magicbrownie
I think im going to go with the substitution method..I really don't have a choice I cannot miss out on this opportunity by all means..its not fair that heavier drug users can pass a test in 3 days and us friendly pot smokers are screwed for 3 months!

whats the safest way to do this? anyone?
heres what im thinking..I'll use an 8oz container of clean urine from my clean friend and wrap it with an activated pocket warmer..that will keep the urine at 98 degrees..any recommendations?
Read up on N2's Substitution thread found here:
http://boards.cannabis.com/drug-test...uidelines.html

Also, N2 has quite a few posts elsewhere that deal with subbing on a DOT U/A. They can all be found by utilizing the Advanced Search feature, using his username.

You should do some practice drills, using warmed water in place of urine. For checking temp, baby forehead "stick on"-type temp strips can be used. They can be found at your local chain pharmacy store.

8 oz is overkill and not necessary. 2 oz (60 ml) is all you need, which is more than enough - DOT requires only 45 ml of sample. The sample is then split 30/15, in which the split must be performed in your view, as outlined in the DOT regulations.