As the very premise of this website demonstrates, pre-employment drug tests are always predictable if you have the right information. On-the-job drug tests, on the other hand, may be random, but certain industries and companies have reputations for doling out random drug tests to their employees.

Our data shows that pre-employment drug tests are significantly more common than on-the-job drug tests. 86% of users who were drug tested were tested pre-employment, while only 20% of users who were drug tested were tested on-the-job (yes, 6% of users received both a pre-employment and on-the-job drug test).

For those of you who are actively job searching, how can you avoid getting yourself in trouble? Yes, you can go the route of Certo and lots and lots of water. Good luck with that. More simply, you can know how long you need to stop consuming the substance of your choice based on the type of drug test you will be receiving:

Cannabis Drug Detection Window by Test Type

Cannabis Drug Detection Window for Urine Tests Based on Frequency of Use

Of course, despite your best planning, it's always possible that you will be caught off guard with an unexpected drug test: If drugs are already in your system, there are reliable drug detox products that have been proven to make you test negative, such as TestClear's detox products for urine, hair, saliva, and blood drug tests.

Coming up next: information for other drugs besides cannabis.

Whether you were drug tested or not, The True Negative wants to hear from you! Please take two minutes to submit information on your drug testing experience here.