Concussions are a growing concern in youth sports.  Follow the link to the Centers for Disease Control and Prevention to learn more and to download information for coaches, parents, and athletes.

http://www.cdc.gov/headsup/youthsports/index.html  

Here is information that US Lacrosse just put out regarding the management of concussions.

http://www.uslacrosse.org/portals/1/documents/pdf/about-the-sport/concussion-management-plan-guidelines.pdf 

Here is information regarding Massachusetts' law on concussion training.

http://www.momsteam.com/health-safety/youth-sport-concussion-safety-law-massachusetts