The ticket for the broken taillight is a minor offense that is not likely to affect your father's insurance rates but the DUI is considered a major violation and will in all probability affect your father's insurance rates since you are a rated driver on it.
The driving record of any licensed driver on a policy or in a household can have an impact on the insurance premiums as well as the insurance company's decision to insure the vehicle. Certain infractions may cause an insurance carrier to turn you or the policyholder down for insurance coverage or to pay high-risk premiums.
A person with a bad driving record is more of a risk for an insurance company then a person with a clean driving record and thus their rates are normally higher. The whole policy thus can be affected by one driver's DUI or another type of serious driving infraction. To find out how much your citations may affect your father's insurance premiums you will need to contact his insurance provider and request information on their rating system.
If the your father's insurance rates go up due to your DUI, they may want to comparison shop for auto insurance to see if they can find a better rate. Insurance quotes for all 50 states can be done here with us.
Information in the Georgia driver's manual states that a person 21 or more years of age is considered under the influence of alcohol when 0.08 gm or more by alcohol weight is present in the blood. A person under 21 years of age is considered under the influence of alcohol when 0.02 gm or more by alcohol weight is present in the blood.
Penalties for driving under the influence of intoxicants in GA are severe, with fines up to $1000, jail sentences up to 12 months, and mandatory suspension of your driving privileges. You may want to contact the court before your court date to find out what specific penalties you will be facing in your situation.