http://www.russbrown.com/what-is-bam.html"Basically, you carry something the size of a credit card in your wallet, and you sign up online. From the sounds of it, there are quite a few people signed up for this. If you ever get in an accident, or have some other type of problem on the road, you call the number on the card and they redirect you to people in your area that have also signed up for this, that can come help you. Likewise, when you are signed up, you can check boxes saying that you are available to help if someone in your area gets hurt or breaks down or anything."