To quote ARRL directly:
To work as many stations as possible on any and all amateur bands (excluding the 60, 30, 17, and 12-meter bands) and in doing so to learn to operate in abnormal situations in less than optimal conditions. A premium is placed on developing skills to meet the challenges of emergency preparedness as well as to acquaint the general public with the capabilities of Amateur Radio.
To begin, please complete our online registration form (or click the below button) to let us know you're coming.
Once you've registered we'll include you in all updates regarding the event. Of course, you can also check back here periodically to get any updates as well.
To get started, take a few minutes and read through the Official AARL Field Day Packet. It's full of the information you'll need to know when operating as well as what to expect during the event.