(The use of your vehicle related to educational events for CMTR are considered a donation to a nonprofit organization, and we will provide you with a receipt documenting the miles you “donate” to CMTR, which you can then use as a write-off on your taxes. To claim these miles, you must install a mileage tracker app on your mobile device that has the functionality to send a report or screenshot as proof of the miles you drive per day for the trip.)