Generally, transportation costs to and from the event will be paid. This includes airfare, rental car, personal car mileage, tolls, and parking. Meals are not reimbursed unless there is a need for an overnight stay.
For example: You take the 9:00 am flight from Oakland to Orange County for an early afternoon meeting. You plan to return that same day, but all flights are canceled. You catch the first flight out of Orange County the next morning, returning home at 7:00 am. Your trip was less than 24 hours, but because of the overnight stay, meals may be reimbursed.