• Application: “Random Pool Application” is a form to be filled out by the Company or DER that includes the demographics as well as the Roster of Employees that will be submitted to CSG for professional management. See “Random Pool”. See our page on the Random Pool


  • Breath Alcohol Test: aka: BAT, A test given to determine if a drinker’s blood alcohol level is within legal limits by testing lung air samples. This test can be done randomly, post-accident, or pre-employment.
  • Blood Alcohol: Also known as BAC (Blood Alcohol Concentration), refers to the amount of alcohol contained in a person’s blood. It is measured as weight per unit of volume. Typically this measurement is converted to a percentage such as 0.10%, which indicates that one-tenth of a percent of a person’s blood is alcohol. See our page on Drug & Alcohol Testing


  • Chain of Custody: Also known as a COC, a Chain of Custody is the form documenting the management and storage of a specimen from the moment a donor gives the specimen to the collector to the final destination of the specimen and the review and reporting of the final result. IE: The COC documents the fax information for the MRO, who the donor is, the date it was done, and etc.
  • CSG: Consortium Service Group, our partner for professionally managing the Random Pool Process. See our page on the Random Pool
  • Calibration: To fix, check, or correct the graduations of the Breath Alcohol Machine. The Breath Alcohol Machine needs to be calibrated before any tests take place for the day of service.
  • CRS: Certified Results Specialist is an Office Specialist who has been certified to perform drug tests as well as breath alcohol tests.


  • DOT: “Department of Transportation” is a department of the federal executive branch for the national highways, railroad and airline safety. Take a look at the official website.
  • DER: “Designated Employee Representative”. In regards to the federal Department of Transportation guidelines, this is the person that has been selected by the company to act on behalf of those being tested (to receive results, communicate with testing companies, etc.)
  • DHHS: Department of Health and Human Services. Responsible for sending and maintaining drug screens and results for their clients.
  • Drug Free Workplace: Organization where the employer has specific policies and procedures to make sure employees are not using illegal drugs. See our page on Pre-Employment Drug Testing


  • Electronic Payment: Also referred to as an “E-Payment”, an Electronic Payment is a way of paying for a goods or services electronically, instead of using cash or a check, in person or by mail. We accept e-payments.


  • FMCSA: The Federal Motor Carrier Safety Administration, also known as the FMCSA, regulates the trucking industry in the United States. This option needs to be checked on the COC for DOT Drug Tests.
  • Federal: Constituting a form of government in which power is distributed between a central authority and the State. Federal also means belonging or relating to the national government of a federal country rather than to one of the states within it.


  • Hair Follicle: Since hair growth is fed by the bloodstream, the ingestion of drugs of abuse is revealed by analyzing a small sample of hair. Testing method measures the drug molecules embedded inside the hair shaft, eliminating external contamination as a source of a positive test result. See our page on Drug & Alcohol Testing



  • MRO: “Medical Review Officer” is a person who is a licensed physician and who is responsible for receiving and reviewing laboratory results generated by an employer’s drug testing program and evaluating medical explanations for certain drug test results.


  • Non-DOT: “Drug Free Workplace” for marketing purposes or Non-DOT for paperwork purposes.
  • Negative: Negative in Employee Health is in reference to drug test results. When a test is referred to as being negative, this means the sample is void of drugs being tested for.
  • Non-Negative: A non-negative test results is a test that is not negative, yet for legal purposes cannot be classified as positive. A test is non-negative until it is furthered onto lab for lab analysis, which will then specify if the sample was positive for the drugs being tested for or if it was a prescribed medication showing in the urine. See our page on Drug & Alcohol Testing


  • Positive: A confirmed drug test from an MRO that shows levels.
  • Presumed Positive: When a Pre-Employment instant test is missing a line and the employer decides not to send this for further testing..
  • Pulmonary Function Test: Pulmonary function tests are a group of tests that measure how well the lungs take in and release air and how well they move gases such as oxygen from the atmosphere into the body’s circulation.


  • Reasonable Suspicion: Observation of behavior from an employer such as : Physical, Speech, or behavioral cues of questionable job performance may lead to drug testing.
  • Random Pool: A drug screening consortium or “Random Pool” is an association of companies or groups of employers that join together, as a single entity, for the purpose of drug and alcohol testing of its members. The member companies add their employees to a combined random testing pool. The consortium administrator updates the pool and manages the selection process. See our page on the Random Pool
  • Respiratory Fit Test: A “fit test” tests the seal between the respirator’s face piece and your face. It takes about fifteen to twenty minutes to complete and is performed at least annually. After passing a fit test with a respirator, you must use the exact same make, model, style, and size respirator on the job.


  • Tampered Specimen: In regards to drug tests, this means adding certain chemicals to a urine sample will either mask the presence of drugs or interfere with the laboratory equipment. These chemicals are also easily detected by the lab, and the specimen will be flagged as adulterated.


  • Verification: The process of establishing the truth, accuracy, or validity of any drug test that is a non-negative. If a test is considered a non-negative, it is sent on to Lab Analysis for verification of whether the test is positive or negative for illegal drugs. See our page on Drug & Alcohol Testing


  • Work Place Injury: : An injury or illness that occurs in relation to an employee’s job. Most states narrow the definition of a workplace injury to one that “arises out of and in the course of employment” to prevent employees from pursuing compensation for injuries not directly caused by the job.