Final answer:
In NJ it is illegal for an individual who is 21 and older to drive with a BAC of 0.08% or higher.
Step-by-step explanation:
The legal limit is enforced to prevent dru nk driving and is a result of advocacy and legislation such as the National Minimum Drinking Age Act of 1984, influenced by organizations like MADD.
In New Jersey, it is illegal for an individual who is 21 and older to drive with a Blood Alcohol Concentration (BAC) of 0.08% or higher. The Breathalyzer is a widely used device that measures BAC indirectly by analyzing a breath sample. If a person is found driving with a BAC at or above this legal limit, they are considered to be legally dru nk and may face significant penalties.
This standard is a result of efforts like those by Mothers Against Dru nk Driving (MADD), which played a key role in advocating for the National Minimum Drinking Age Act of 1984. States that did not comply with the act by raising the drinking age to 21 faced penalties such as reduced federal highway funds. The limit is intended to deter dru nk driving and reduce alcohol-related accidents on the roads.