Final answer:
If you are age 21 or over and you either fail or refuse a chemical test, the minimum your license will be suspended for is 90 days.
Step-by-step explanation:
If you are age 21 or over and you either fail or refuse a chemical test, the minimum your license will be suspended for is 90 days. This is based on the implied consent law, which states that by driving a vehicle, you have given implied consent to submit to a chemical test if requested by law enforcement. If you do not comply, your license will be suspended.