Quote Originally Posted by toolenit
Reports have it that the DOT is testing for synthetic pee and that it is now recommended that a powdered urine made from real human urine be used.
The reports youre reading are completely off the mark. DOT tests check the creatinine and specific gravity to determine a "non-human" sample (see § 40.93 of the DOT regs in the link provided above). And as long as the synthetic batch is fresh and stored properly, it will pass these two checks and not be ruled "non-human".