Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

The National Minimum Drinking Age Act of 1984 ( 23 U.S.C. 158 ) was passed by the United States Congress on July 17 , 1984 . It was a controversial bill that punished every state that allowed persons below 21 years to purchase and publicly possess alcoholic beverages by reducing its annual federal highway apportionment by 10 percent . The law was later amended , lowering the penalty to 8 percent from fiscal year 2012 and beyond .
National Minimum Drinking Age Act