Automobile emissions testing is required in all or part of 33 states to help maintain the federal air quality standard. Areas that were in moderate nonattainment or worse for ozone in 1990 are included in Ohio's E-Check program. These areas include the metropolitan statistical areas of Cleveland and Akron.
Freebase(0.00 / 0 votes)Rate this definition: Alcohol proof. Alcohol proof is a measure of how much alcohol is contained in an alcoholic beverage. The term was originally used in the United Kingdom and was defined as 7/4 times the alcohol by volume.
A liquor is any alcoholic beverage that is produced by distillation. Many liquors, such as whiskey, vodka, rum, gin, and tequila list the alcohol content of the product in terms of a its proof. The proof is a scale used to measure the amount of alcohol in a liquor. The scale goes from 1 to 200. In the United States, the actual alcohol content, by volume, is half of whatever the proof number reads, so that a 200 proof liquor is 100% alcohol and a 100 proof liquor is 50% alcohol by volume. In other words, the proof is exactly twice the percentage of alcohol that the liquor contains. A liquor that is 200 proof, by this scale, is considered an absolute alcohol and a 100 proof liquor is ...