We do get paid mileage when we volunteer at another PO or even if we don’t volunteer. We also get paid mileage for any training done outside of our PO. Keep in mind mileage will be paid separate from the regular payday and often takes a few weeks to be paid. Also, you have to sign up for direct deposit for mileage otherwise it will be mailed in a check to your home or your home PO. Just my experience anyway.