Drug and Alcohol Testing Service

DOT Drug & Alcohol Testing

It is an industry practice that requires drug and alcohol testing of safety-sensitive transportation employees in aviation, trucking, railroads, mass transit, pipelines and other transportation industries. US Department of Transportation (DOT) publishes rules (encompassed in 49 Code of Federal Regulations Part 40) on who must conduct drug and alcohol tests, how to conduct those tests and what procedures to use when testing. We offer a comprehensive DOT drug & alcohol testing program including policy development, national consortium options and consulting services.

Drug and Alcohol Testing Options

Our Employee Screening Services can assist you or your company in selecting an appropriate type of drug and alcohol testing program to meet your needs. We will share the pros and cons of each type of collection from urine, hair follicle, saliva, instant and breath alcohol testing as well as what panel of drugs you wish to screen.

Alcohol Testing Procedure

Breath alcohol testing is one of the most common ways to perform alcohol screening. The test is performed by having the donor blow forcefully into the EBT's mouthpiece for at least 6 seconds or until the EBT indicates that an adequate amount of breath has been attained. If the result is less than 0.02, the test is considered negative. Breath alcohol tests are immediate, therefore the BAT reports to the employer in a confidential manner. This report may be in writing, in person, or by telephone or electronic means. If the result is positive, the BAT must ensure immediate reporting of the results to the employer to prevent the employee from performing a safety-sensitive function. Non-evidential screen devices are also an option for alcohol testing. These tests use a test strip that is sensitive to the alcohol content of a person's saliva. They are a great choice because they are inexpensive and fairly easy to use.

On-site Testing

Our on-site mobile drug and alcohol testing service is cost effective, fast and convenient. On-site service can be scheduled within Singapore and Internationally with 1-2 weeks notice.

Training Programs

We offer training for employees to become qualified Breath Alcohol Technicians (BAT) who will then be able to conduct breath alcohol tests according to US DOT guidelines.


There are seven situations when drug and alcohol testing can be done. Depending on your goals and the requirements you have to meet, you might want to do testing in all or some of these situations.

1. Pre-Employment

As a new hire, you are required to submit to a drug test. Employers may, but are not required to, conduct alcohol testing. Only after your employer receives a negative drug test result (and negative alcohol test result - if administered) may you begin your employment with the company. If you are a current employee transferring to another position, the company may require a drug test.

2. Pre-Access Testing

If you are performing safety-sensitive functions, you may be subject to drug and alcohol testing before gaining access to the work site. Failure to show for a test or interfering with the testing process can be considered a refusal and may 

3. Reasonable Suspicion/Cause

You are required to submit to any test (whether drug, alcohol or both) that a supervisor requests based on reasonable suspicion. Reasonable suspicion means that one or more trained supervisors reasonably believes or suspects that you are under the influence of drugs or alcohol. They cannot require testing based on a hunch or guess alone; their suspicion must be based on observations concerning your appearance, behavior, speech and smell that are usually associated with drug or alcohol use.

4. Random

You are subject to unannounced random drug & alcohol testing. Alcohol testing is administered just prior to, during or just after performing safety-sensitive functions. Depending on the industry specific regulations, you may only be subject to random drug testing. No manager, supervisor, official or agent may select you for testing just because they want to. Employers must use a truly random selection process. Each employee must have an equal chance to be selected and tested. Just prior to the testing event, you will be notified of your selection and provided enough time to stop performing your safety sensitive function and report to the testing location. Failure to show for a test or interfering with the testing process can be considered a refusal.

5. Post-Accident

If you are involved in an event (accident, crash, etc.) meeting certain criteria of the company, a post-accident test will be required. You will then have to take a drug test and an alcohol test. You are required to remain available for this testing and are not permitted to refuse testing.

6. Return to Duty

If you have violated the prohibited drug & alcohol rules, you are required to take a drug and/or alcohol test before returning to safety-sensitive functions. You are subject to unannounced follow-up testing at least 6 times in the first 12 months following your return to active safety-sensitive service.

7. Follow-up

The amount of follow-up testing you receive is determined by a Substance Abuse Professional (SAP) and may continue for up to 5 years. This means the SAP will determine how many times you will be tested (at least 6 times in the first year), for how long, and for what substance (i.e. drugs, alcohol, or both).Your employer is responsible for ensuring that follow-up testing is conducted and completed, and your employer may have a policy that all follow-up tests are collected under direct observation.



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