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.
Liquor labels always say, proof, like, 80 proof. What does proof actually mean? Douglas from Minneapolis * * * Dear Douglas, At first glance proof's definition makes no sense. It seems needlessly complicated. Proof is the government documentation of a distilled beverage's alcohol content. In the United States if you cut the number in half and you get you get the actual amount of alcohol in the bottle. Eighty proof means 40 percent of the liquid in the bottle is alcohol. Why use proof when you could simply state 40 percent on the bottle?