Yes, the actual out-of-pocket travel expenses are deductible if your attendance was required, or recommended, at the event and it was in relation to your volunteer work for the organization. Also, see this about deducting volunteer work:
https://ttlc.intuit.com/replies/4797925
How to get to that area
:
While
inside the software and working on your return, type charitable
donation in the Search at the top of the screen (you may see a
magnifying glass there). There will be a popup that says Jump
to charitable donation . Select that to get to the general
area.
