Avail charges a general insurance fee. Avail doesn’t charge extra fees for drivers under 25 years old, adding a second driver or canceling your trip before the reservation start time. You may be charged fees or fines if you break our Borrower Rules and Guidelines, including for smoking or vaping, bringing a pet (service animals are accepted), damaging the vehicle, unauthorized drivers, excessive wear and tear and returning the car with less gas than was provided at pick up.