Blood Alcohol Concentration (BAC) Limits

This table details the legal blood alcohol concentration (BAC) and breath alcohol concentration (BrAC) limits for the general population of drivers in all countries for which IARD has been able to verify the information with the respective national authorities or through publicly accessible documents. It is specified where different limits apply to sub-populations of drivers.

It is updated on an ongoing basis as jurisdictions enact or revise their requirements with assistance from staff of the Law Library of Congress (Washington, DC). The listed update date for this table indicates when IARD last conducted a review of records across all countries. For more information on how the table is populated, see What goes in the IARD Policy Tables? 

Suggested citation:

International Alliance for Responsible Drinking (IARD). (2019). Blood alcohol concentration (BAC) limits. Retrieved from https://iard.org/science-resources/detail/Blood-Alcohol-Concentration-(BAC)-Limits

If you find any of the information outdated, please email us at RegDB@iard.org

The resources on this website are not intended as health advice to individuals about their drinking. People with specific questions about their drinking are encouraged to consult a healthcare professional. Together, they can determine what is best for that individual, based on individual risk factors, including family history, genetics, and lifestyle. For some people, the better choice may be to not drink at all.  

IARD Policy Tables are provided for informational purposes only, and should not be construed as legal advice on any subject matter. All IARD materials include a date of content review and they should be read in their entirety and not misrepresented or taken out of context.