No one does hair tests anymore because they are much less reliable than urine tests. I know this for a fact and the only time they even consider hair tests is in like investigations for an off-chance lead or those types of situations. This discussion reminds me of a episode of "King of the hill" where a drug addict is hired and then the company is required to treat and accomdate the addict because of the american's with disability act. Sounds outrageous at first, but addication can be filed as a disability in many states ..... as employer i'd rather no t deal with that kind of a burden. Its not like drug tests are doing a soul smear, if you tried it once or do it once a month and avoid it approaching the interview then you'll be fine. I love telling people outlandish things to do to pass the test because they trust me....."do you have an vineagar around the house, drink some of that every hour for the next three days"....