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FSTs (and SFSTs) are primarily used in the United States, to meet "probable cause for arrest" requirements (or the equivalent), necessary to sustain an alcohol-impaired driving (DWI or DUI) conviction based on a chemical blood alcohol test.
Drunk driving is the act of operating a motor vehicle with the operator's ability to do so impaired as a result of alcohol consumption, or with a blood alcohol level in excess of the legal limit. [1] For drivers 21 years or older, driving with a blood alcohol concentration (BAC) of 0.08% or higher is illegal.
The ratio of venous blood alcohol content to breath alcohol content may vary significantly, from 1300:1 to 3100:1. Assuming a blood-alcohol concentration of 0.07%, for example, a person could have a partition ratio of 1500:1 and a breath test reading of 0.10 g/2100 mL, over the legal limit in some jurisdictions. [17]
FSTs are primarily used in the United States, to meet "probable cause for arrest" requirements (or the equivalent), necessary to sustain a DWI or DUI conviction based on a chemical blood alcohol test. In the US, field sobriety tests are voluntary; however, some states mandate commercial drivers accept preliminary breath tests (PBT). [citation ...
A suspension can occur from either the refusal to submit to a chemical test or results of 0.08 or greater alcohol concentration when a chemical test is taken. This blood alcohol concentration (0.08 grams percent) applies to drivers aged 21 and over, but a lower BAC level applies to underage drivers or any driver operating a commercial motor ...
WASHINGTON (Reuters) -The Federal Aviation Administration said on Monday it has finalized rules requiring aviation-repair stations in foreign countries to conduct drug and alcohol testing for ...