Proof is a measure of the alcohol content of a beverage. In the U.S., policymakers define proof as twice the percentage of alcohol by volume (ABV). For example, a drink with 40% ABV is 80 proof.

Several tests measure the level of alcohol in your blood. These procedures are typically simple but may take several weeks to get results. A blood alcohol test measures the percentage of alcohol in a ...

New DOT regulations cover oral fluids specimen testing for workplace drug and alcohol testing programs. The regulations affect drug and alcohol testing programs covering an estimated eight million ...

The US Food and Drug Administration (FDA) issued final guidance to assist manufacturers and compounders in testing alcohol products (ethanol and isopropyl) for methanol. The final version expands the ...