A search on the AMA website provides the answer that you need.
According to their CME information,
?Credit may be claimed for teaching at a live activity that is
designated for AMA PRA Category 1 Credit. You may only claim credit
once for a repeated presentation, and cannot claim credit if you have
already been awarded credit for the same presentation from the
accredited provider of the activity. Supporting documentation
requirements include a program or announcement indicating the
speakers, accredited providers, dates and locations of each activity.
The AMA will award 2 credits per hour of interaction.?
It states that this credit is only available until June 1, 2006, after
which the requirements may change. Other activities like this that may
qualify for CME credit are participating in poster sessions and
If you have any need of further clarification, please let me know how I can help.
Reference American Medical Association website