Who must be tested?

All drivers who hold a Commercial Drivers License (CDL) and who operate a Commercial Motor Vehicle (CMV), will be subject to alcohol and controlled substances testing pursuant to the United States Department of Transportation (Federal Motor Carrier Safety Administration) regulations. 


What is considered alcohol?

Alcohol means the intoxicating agent in beverage alcohol, ethyl alcohol, or other low molecular weight alcohol including methyl and isopropyl alcohol. The mandated method for testing for alcohol is by breath and/or saliva. Only devices approved by the National Highway Traffic Safety (NHTSA), which are on the Conforming Products List (CPL) shall be utilized for alcohol testing. Only trained Breath Alcohol Technicians (BAT’s) or Screen Test Technicians (STT’s) will be allowed to administer a breath or saliva test. The New Hampshire Motor Transport Association consortium testing program has several locations that have the required personnel and equipment in place to perform the required alcohol testing. 

A commercial vehicle is defined as:

  • Vehicles with a gross weight rating of 26,001 + pounds
  • Vehicle with a gross combined weight rating of 26,001 or more pounds inclusive of a towed unit with a gross vehicle weight rating of more than 10,000 pounds
  • Passenger vehicles designed to transport 16+ passengers, including driver 
    Vehicles transporting hazardous materials requiring placarding

These rules apply to drivers who operate CMV’s both interstate (multi-state) and intrastate (within state borders).

What are considered "Controlled Substances"?

  • Cannabinoids (Marijauna, hashish, grass, pot, hash oil, marinol)
  • Cocaine (Coca leaves, crack, free base, snow, flake, blow) 
  • Opiates (Opium and codeine derivatives-heroin, smack, junk)
  • (Meth) Amphetamines (Stimulants, speed, crystal, crank, uppers, bennies, dexies, etc) Phencyclidine (PCP – angel dust, dusters, hallucinogens)

when are tests required?

Pre-employment: This test applies to CDL drivers applicants.

Random:  Unannounced testing of CDL drivers based on a random selection of drivers. Names are chosen by lottery from a list of all drivers in a pool. Drivers are notified of selection must submit to testing. This process ensures that all drivers have an equal chance of being selected at any time. The selection over a 12 month period with a 50 percent annual sample rate for eligible drivers. Random alcohol testing should be conducted at an annualized rate of 10 percent. 

Post Accident: This test applies to CDL drivers cited for a moving violation arising from a reportable accident or when a fatality occurs. This test must be administered within 32 hours of the accident. Alcohol testing must be conducted within 8 hours of an accident. 

Reasonable cause:  This test applies when a trained supervisor or company official observes a driver acting in a manner which indicates use of alcohol or controlled substances. The supervisor must prepare and sign a statement documenting the observation within 24 hours. Testing should be coordinated as soon as possible following the reasonable cause determination. 

Return to Duty: Should a driver test positive, before returning to work for a company, the driver must submit to and pass a return-to-duty alcohol and/or controlled substance test. 

Follow up: After the driver has passed a return-to-duty test, the driver  is subject to follow-up testing at a minimum of 6 tests in the first twelve months upon returning to duty. 

testing procedures:

The mandatory testing procedures are based on those established by the United States Department of Health and Human Services. 

These procedures include: 

  • Urine sample collection
  • Laboratory procedures
  • Alcohol test procedures
  • Reporting of results and confidential record-keeping of final test results and statistical date.

Only laboratories certified by the Substance Abuse Mental Health Services Administration (SAMHSA) may be used. These procedures exist to safeguard accuracy and to protect the privacy of drivers. 

It is critical that companies and drivers participate honestly in the process. A driver who refuses to submit to testing is considered “unqualified to drive”.  A driver who has tested positive test results with a qualified Medical Review   Officer (MRO). The driver will be given an opportunity to explain any special   circumstances to the MRO. The MRO has the authority and responsibility for   reporting the results to the companies drug program management for action. 

All drivers who have been determined to be positive by the MRO must be referred to a Substance Abuse Professional (SAP) for counseling. 


In addition to the testing procedures, §382 of the FMCSA regulations requires all drivers, supervisors and company officials undergo a training program on the subject of the use and abuse of alcohol and controlled substances.