i ' ll give the a calculator 1 more shot . but not even close to an answer to my ? i should go add run zones 0 to 3000 ish , how long is your 0 to 3000 ? <| sep |> Ill cry the day they scrap the USS Massachussetts my home state . <| sep |> Do not expect things to get any better for the foreseeable future . Attorney General elect Mr . Sessions will be revoking the Cole memo which basically told the Justice Department how to handle medical marijuana and recreational legality with a little common sense . You can expect a rabid crackdown on January 21 st . They will go back to kicking in doors of licensed state dispensaries again , just like before the memo . If your job is government related or does business with the Fed in any way shape of form and I mean delivering pizzas to a government building drug testing wont be getting sensible anytime soon . Drug testing is almost unheard of in Canada . Quite a few other countries too . You cant sell newspapers on a corner within 50 miles of DC without documented Purity Of Essence . Private businesses have a lot of leeway even in states where pot is not legal . If the management wants to be hard asses they test urine or hair which can detect THC for more than a month sometimes way more from last use . If the employer is truly interested in whether an employee was under the influence on the clock , they use a mouth swab 24 hours from last use on the spot . I would imagine some of it is dictated by the company ' s liability exposure for insurance purposes , but the way it can vary from location to location within the same employer , the insurance excuse doesn ' t seem to hold water . In any case , it seems like your employer is pretty clear on their testing policy and you know how it goes . I can see the need for testing within 48 hours . Most other drugs will leave detectable metabolites in the urine that long . Maybe the folks in your HRdept don ' t know that you can have a false positive for THC up to a month after using reefer , but it sounds like they plain don ' t care . It wont pick up alcohol unless they test right away which pretty much invalidates the whole testing idea if they are trying to find if someone was under the influence on the job . Doing it this way is dumb and an invasion of privacy . We care about good urine , not good employees is a hell of a way to run a company , but when they have no problems with being drunk on the job , maybe its expecting too much from them . I dont get for another reason . Lab testing for THC in urine is not cheap . That ' s one of the reasons in the Opiate Guidelines from the CDC earlier this year told doctors they should stop testing patients on opiate for THC . Employers could test you far cheaper if they were only interested in use at work with a mouth swab , then send a urine sample out to a lab for the other , cheaper to test for drugs . I ' m glad to hear you wont be having any trouble with this . That ' s the important thing . Since you are in a MM state , you may even want to ask them exactly what their policy would be in the case of someone compliant with state medical use . In a strictly conversational manner , of course . If they have asparagus at your holiday feast , it makes your urine smell very weird and very strong . Leave them a sample to remember you by . Have a good Thanksgiving .