Big Sky Drug Testing Services, LLC

Onsite vs Offsite


  1. Employees do not leave jobsite
  2. Employees continue to work right up until the test
  3. Employees have no time to flush system or preparation time to adulterate a specimen
  4. Employee need not be accompanied by a supervisor depending on the situation
  5. Employees return to work immediately


  1. Employee must leave jobsite
  2. Employee must be accompanied by supervisor depending on the situation
  3. Employee may have enough time to flush system, adulterate or somehow otherwise prepare themselves for the drug test
  4. Employer liability exposure (insurance, worker’s compensation, etc.) is multiplied with the employee traveling to and from the hospital/clinic
  5. Employee and supervisor will be absent for a significant amount of time from the workplace


**Big Sky Drug Testing Services, LLC follows DOT regulations while performing DOT and Non-DOT drug and alcohol collections.

**Montana State Law states, in part, that “Controlled substance and alcohol testing procedures for samples that are covered by 49 CFR, part 40, must conform to 49 CFR, part 40.

For samples that are not covered by 49 CFR, part 40, the qualified testing program must contain chain-of-custody and other procedural requirements that are at least as stringent as those contained in 49 CFR, part 40, and the testing methodology must be cleared by the United States food and drug administration.”  In other words and to summarize, drug testing in Montana must mirror DOT regulations where the use of a Medical Review Officer (MRO) is required on specimen collected.  The State of Montana does not allow Rapid Instant Testing except for Probation, Parole and in accordance with court orders.


Onsite vs Offsite

DOT Modes Requiring Testing

Lab Associations


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