This Always Works : Go To Walmart & Go To The Medicine Area...Look In The Vitamin Section & Find A Bottle Of Niacin....This Is A Dietry Supplement In Which Burns Your Fat Cells...When You Smoke The Thc Stores In Your Fat Cells So Niacin Will Help Burn It Off...Also Drink As Much Water As Possible & Exspecially On The Day Of The Test, Drink Enough Water To Where Your Pissing Like Every 10-15 Minutes...Before You Go To Take The Test Your Piss Should Be Clear As Water & If They Say Anything About Your Piss Being Clear, Just Say You Been Doin Some Yard Work Outside & You Drank Alot Of Water Or Something...Im Sure You Can Think Of Some Kinda Excuse...Either Way You'll Be Clean...Good Luck