In addition to the twenty-five states that have passed concussion safety laws, new concussion safety rules, policies and statements have been issued by national and state high school athletic associations, including the National Federation of High School Associations (NFHS) and by a growing number of individual state high school athletic associations, including:
- California
- Delaware
- Georgia
- Michigan
- New Jersey; and
- Tennessee.
Updated July 25, 2011
