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As of December 9, 2025, anyone who wants to get a driver’s license for car or motorcycle will have to take a toxicological exam on hair or body hair, which detects marijuana, cocaine, amphetamines and opiates, costs between R$ 110 and R$ 250, is valid for 90 days and is done in laboratories accredited by Senatran.
As of December 9, 2025, anyone who is going to get a driver’s license in categories A and B will have to undergo a toxicological exam on hair, body hair or nails, capable of identifying, in a laboratory, drug groups such as marijuana, cocaine, amphetamines and opiates defined by Resolution 293 of Contran.
The requirement, which previously only applied to professional drivers in categories C, D and E, will now also affect motorcycle and passenger car drivers, with collection in laboratories accredited by Senatran, estimated cost between R$ 110 and R$ 250 and valid for up to 90 days for the report.
Who Is Required to Take a Toxicological Exam to Get a Driver’s License
In practice, the new requirement expands the scope of the toxicological exam, which ceases to be exclusive to professional drivers in categories C, D and E.
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As of December 9, 2025, any candidate for a driver’s license for car or motorcycle will need the toxicological report to complete the licensing process.
Before the change, the test was mandatory only for categories related to bus drivers, vans and school transport vehicles, used professionally.
Now, drug checks also enter the routine of those looking to drive passenger vehicles, which increases the cost and level of oversight in the initial licensing of the driver’s license.
Which Drugs Can the Toxicological Exam for Driver’s License Identify
The toxicological exam required for the driver’s license follows the parameters of the Resolution 293 of the National Traffic Council (Contran), which defines which groups of substances need to be traced.
Among the drugs detected are amphetamines, including methamphetamine, MDMA, anfepramone, and femproporex, as well as mazindol.
The test also seeks cannabinoids, such as marijuana and its derivatives, cocaine and its metabolites, and opiates such as morphine, codeine, and heroin.
By identifying these groups, the exam can compile a more detailed consumption history, making it much harder to hide prolonged use of illicit substances before obtaining or renewing the driver’s license.
How the Collection of Hair, Body Hair, and Nails Is Done
According to the defined rules, the detection is made from keratin samples, which are structures such as hair, body hair, and nails.
The preference is for the collection of hair strands or body hair, which concentrate information over time about drug use.
Urine or blood tests have short detection windows, but hair strands and body hair allow for a prolonged and detailed consumption history, increasing the effectiveness of the toxicological exam linked to the driver’s license.
When a person does not have sufficient hair or body hair, the procedure permits the use of nails, as long as a medical report proves universal alopecia.
All of this is recorded and processed in the laboratory, linking the result directly to the process of obtaining the driver’s license.
How Much Does the Toxicological Exam for Driver’s License Cost and What Is the Validity
The toxicological exam for driver’s license must be performed in laboratories accredited by the National Traffic Department (Senatran), responsible for analyzing the material collected at collection points contracted specifically for this service.
According to the Brazilian Traffic Code, the exam cost is defined by free competition. Today, the estimate is for an additional cost between R$ 110 and R$ 250 for those who need the toxicological report to obtain or regularize the driver’s license in categories A and B.
The result has a validity of up to 90 days and can be reused for other purposes within this period, allowing the driver to use the same exam for more than one demand, as long as it is still within the validity period.
Controlled Medicines, Confirmatory Test, and Right to Appeal
There are situations where the candidate for a driver’s license uses substances prescribed by doctors, such as controlled medicines that fall within one of the groups tracked by the toxicological exam.
In these cases, it is possible to prove use by medical prescription so as not to lose the right to obtain, renew, or change categories.
If the driver disagrees with the result, they can request a confirmatory test and appeal administratively, using the same sample collected in the first exam.
And for you, does it make sense to require a toxicological exam on hair and body hair from everyone who will get a driver’s license for car and motorcycle as of December 9, 2025?
Não faz