Final answer:
In Washington state, drivers under 21 will be arrested for a BAC of 0.02% or higher, reflecting strict underage DUI laws influenced by the National Minimum Drinking Age Act of 1984 and lobbying by Mothers Against Dru_nk Driving (MADD).
Step-by-step explanation:
In Washington state, if you are under the age of 21 and are caught driving with a BAC (blood alcohol concentration) of 0.02% or higher, you will be arrested. This limit is much lower than the 0.08% threshold for drivers 21 years of age and older due to the National Minimum Drinking Age Act of 1984, which required states to set the minimum drinking age at 21. The Act was partly a response to lobbying by organizations such as Mothers Against Dru_nk Driving (MADD), which advocated for higher legal drinking ages and tougher penalties for violators to reduce dru_nk driving incidents and related fatalities. In addition to legal consequences, alcohol intoxication impairs the ability to drive and increases the risk of accidents.