If you have a DUI or poor Driving Record, renting a car may be next to impossible.
Ask if the rental car company checks the driving records of potential customers before you get to your destination to pick up your vehicle.
Many companies now check driving records when customers arrive at the counter. Some reject customers whose driving records don't meet company standards. Even if you have a confirmed reservation, you may be disqualified from renting a car for moving violations within the last few years.

Rental Car Screening Standards
Generally, a rental car company that screens drivers may deny you a rental if during the past 36-months period, YOU...

• Were caught driving with a suspended or invalid drivers license.
• Had one instance of DUI, Hit and Run, driving a stolen car or other serious offense.
• Had three moving violations, or
• Were at fault in two accidents.
  
  

The standards adopted by each rental car company vary and are subject to change, so you need to inquire about the specific rental screening standards of any company you are considering using. Instead of screening you, some rental car companies may require you to sign a statement that you have an acceptable driving record. This shifts the responsibility for providing accurate information away from the company and to you. If you have an accident and signed a statement that turns out to be incorrect, the rental car company could use it against you by claiming that you acted in violation of the rental agreement.