If you want to find out more about what are the consequences of a refusal to test, the following is summarized from DOT Rule 49 CFR Part 40 Section 40.191
As an employee, you have refused to take a drug or alcohol test if you:
Fail to appear for any test (except a pre-employment test) within a reasonable time, as determined by the employer after being directed to do so by the employer. This includes the failure of an employee (including an owner-operator) to appear for a test when called by a C/TPA.
Leaving the testing site before completing the process results in failure. The only exception is a pre-employment test where you leave before it begins.
Failing to provide a urine specimen for any drug test leads to failure. If the urine sample is insufficient and no medical explanation exists, the test is also considered failed.
Refusing or declining to take a drug test as directed by the employer or collector results in non-compliance.
Not cooperating with any part of the testing process leads to failure. Examples include refusing to empty pockets when instructed, acting confrontational and disrupting the process, or ignoring directions to wash hands.
During an observed collection, failing to follow the observer’s instructions results in test failure. Instructions include raising clothing above the waist, lowering underpants, and turning around to confirm no prosthetic or device is present.
Bringing or wearing a prosthetic or any device intended to interfere with the collection process leads to automatic failure.
Admit to the collector or MRO that you adulterated or substituted the specimen.
A Refusal To Test has the same consequences as a positive test result.
