How old do I have to be to join?

Youth members must be at least 12 years old and not yet 19 years old. 

Special school squadrons accept cadets under the age of 12 as long as they are in the sixth grade.   You'll know it's a school squadron because the units have 800 series charter numbers.   Additionally, the unit name usually includes the name of the school.   Example:  GLR-IN-806 John Adams High School Cadet Squadron.